how do i fix outlook 365 problems

Fix your Outlook email connection by repairing your profile

Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.

Do you have a Microsoft 365 account?

The Microsoft Support and Recovery Assistant can diagnose and fix several Outlook issues for you, including fixing your Outlook profile. To download and install the Microsoft Support and Recovery Assistant, click download the tool . Once installed, the application will run automatically.

Repair a profile in Outlook 2010, Outlook 2013, or Outlook 2016

In Outlook 2010, Outlook 2013, or Outlook 2016, choose File .

Choose Account Settings > Account Settings .

On the Email tab, choose your account (profile), and then choose Repair .

Note:  The Repair option isn't available if you're using Outlook 2016 to connect to an Exchange account.

Follow the prompts in the wizard, and when you’re done, restart Outlook.

Outlook connection still not working?

Run Windows Update to make sure you have the latest updates for Outlook and other desktop apps for Microsoft 365.

Download and run the Microsoft Support and Recovery Assistant.

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how do i fix outlook 365 problems

How do I Repair Microsoft Outlook 365 in Windows 10?

Summary: In this blog, we have mentioned the stepwise process to repair Outlook 365 in Windows 10. We have also mentioned an Outlook Repair tool that can help you repair PST file, in case you’re encountering problems due to corruption in the Outlook data file.

Free Download for Windows

How to Repair Outlook 365 in Windows 10?

Repair corrupt pst file using stellar repair for outlook software.

Outlook is available as a part of Microsoft 365 subscription, commonly called Outlook 365. Sometimes, it fails to respond, does not open, or throws errors, like ‘Failed to launch’, etc. Since MS Outlook is crucial for sending/receiving emails, we know that you want to resolve such issues as soon as possible. In this blog, we will help you by providing Outlook 365 repair options.

To resolve issues with your Outlook, you can repair the application by following the given steps:

Note:   The box displays two options to repair the Outlook 365 application:  Quick Repair and Online Repair . Let’s discuss the two repair options one-by-one.

Important Note:  Before you begin with Online Repair, save all your data and close all the Office programs. It is to be noted that you may lose Office 365 customization and settings.

The steps given above helps to repair Office 365 in Windows 10 and resolve issues with your application. However, sometimes, you face issues with your Outlook 365 due to corruption in the PST file. In such a case, you need to repair the corrupt PST file.

To repair a corrupt Outlook PST file, you can use an advanced PST repair tool , such as Stellar Repair for Outlook . The tool is easy-to-use and can even repair large-sized PST files in a few simple steps. The steps to repair corrupt PST file using the software are as follows:

If you’re facing issues with your Outlook 365 application, you can repair the application to resolve the issues. You can repair Outlook 365 in Windows 10 by following the steps mentioned in this post. However, if your Outlook PST file is corrupt, you can use Stellar Repair for Outlook software to repair the PST file. The software repairs the PST file and recovers all the data, with 100% integrity. This tool can also retrieve deleted mailbox items. You can download the free version of the software to evaluate its functionality.

About The Author

how do i fix outlook 365 problems

Ravi Singh is a Senior Writer at Stellar® . He is an expert Tech Explainer, IoT enthusiast, and a passionate nerd with over 7 years of experience in technical writing. He writes about Microsoft Exchange, Microsoft 365, Email Migration, Linux, Windows, Mac, DIY Tech, and Smart Home. Ravi spends most of his weekends working with IoT (DIY Smart Home) devices and playing Overwatch. He is also a solo traveler who loves hiking and exploring new trails.

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Fix Outlook and Office 365 problems with a click with Microsoft Support and Recovery Assistant

Fix outlook and office 365 problems, microsoft support and recovery assistant for outlook & office 365, do i need an account to use the microsoft support and recovery assistant, do you need an internet connection to use the support app.

Yes, you need to have an internet connection as a lot of suggestions come from the internet. Along with that, the application also collects log that is sent to the Microsoft servers for further analysis.

[email protected]

What To Do When Microsoft Outlook Won't Open

Different things can cause this problem, but there are several fixes to try.

how do i fix outlook 365 problems

how do i fix outlook 365 problems

In This Article

Jump to a Section

When you select the Microsoft Outlook program from the Start menu or a shortcut icon, but Outlook won't open, the proper fix depends on what you experience and the version of Microsoft Outlook that you're using.

Reasons Why You Can't Start Outlook

Several issues could cause Outlook to open incorrectly or not at all. Some common culprits include:

There are other issues, too, that can contribute. Maybe you've added a new program to your computer that doesn't get along with Outlook, for example, or your system has a virus. Regardless of the specific cause, there are several key troubleshooting fixes to try that might help.

How To Fix Outlook Not Opening in Windows

If you use Outlook on a Windows computer and Outlook doesn't open or opens with problems, try these troubleshooting steps in the order presented here, from simple to more complicated.

If you use the cloud-based Microsoft 365 on a PC or a Mac, the automated Support and Recovery Assistant tool can diagnose and fix many issues, including the problem of Microsoft Outlook not starting.

Open Outlook in Safe Mode . If Outlook opens as expected in Safe Mode, the issue is likely an add-in or toolbar extension.

Disable add-ins. One or more add-ins could be conflicting with Outlook and cause the problem. Disable all add-ins and see if this resolves the issue.

Scan your system for viruses, Trojans, spyware, and other malware. If you find a problem, resolve it with your security software, reboot your computer and try restarting Outlook again.

Repair Outlook. The Outlook application may be damaged. Use the built-in Microsoft 365 repair utility to fix it.

Repair your Outlook profile. Outlook profiles can become corrupted, causing all sorts of problems, including Outlook not opening.

Repair Outlook data files. If Outlook still doesn't open, use the Inbox Repair tool to find and possibly fix the problem.

Reset the navigation pane. A startup issue with the navigation pane can prevent Outlook from opening correctly. Resetting the navigation pane might resolve the issue.

How To Fix Outlook Not Opening in Mac

The following troubleshooting techniques apply to Outlook 2016 for Mac and Outlook 2011 for Mac.

Check for updates. A recent update could include a fix for the problem of not being able to start Outlook. Check for and install any available updates, even if you cannot open Outlook.

Rebuild the Outlook database. Using the Microsoft utility to rebuild a corrupted database might solve the problem of Outlook not opening on a Mac.

If you have a Microsoft Exchange account, rebuilding the database deletes any information that isn't synced with the server. Back up any Outlook data stored only on your computer before you rebuild the database.

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How to Repair Outlook 365 on Windows 10?

Himanshu Goyal

Read time 9 minutes

Outlook is a popular email application offered by Microsoft with Office 365 subscription. But many users often face issues while using Outlook, such as it stops working or showing an error “Failed to launch.” Especially, people using Office 365 applications on Windows 10 face these issues the most.

Reasons for Outlook Error “Failed to launch”

Based on users’ experiences, it appears that the problem may occur due to:

bussinesman

Recommended tool to solve Outlook issues. Try Kernel for Outlook PST Repair to repair and recover data from corrupt PST files.

Sometimes, other reasons like new program installation containing viruses can contribute to the corruption of PST files. Currently, repairing Outlook 365 on Windows 10 is a real problem if you use it for official emails daily. In this article, we have mentioned some methods that will help you to repair Outlook Office 365 on Windows 10.

Microsoft provides a free Office 365 troubleshooting tool that can resolve most of the common problems related to Office 365 applications. However, it might not be helpful in addressing all the issues associated with Office 365 applications, but common issues like Outlook or any other app not working properly can be fixed easily. Follow the steps given below:

type Settings in the search bar

If your Outlook 365 application is not working properly, you can try uninstalling and reinstalling it. This will help you to get rid of any corrupt files that might be causing the problem. Here are the steps that you need to follow to uninstall and reinstall Outlook 365 on Windows 10:

Run window

Click on the Uninstall

If uninstalling and reinstalling Outlook 365 does not fix the problem, you can try repairing it using the Microsoft Fix It tool. This tool will automatically fix any corrupt files that might be causing the issue. Here are the steps that you need to follow to repair Outlook 365 using Microsoft Fix It:

If you are using a third-party firewall application, then it might be blocking Outlook 365 from accessing the internet. You can try changing your firewall settings to see if that fixes the problem. Here are the steps that you need to follow to change your firewall settings:

type firewall

See it’s very simple to repair Outlook 365 application on your Windows 10. However, it’s not necessary that there is always a problem with the Outlook app. Sometimes, the PST file in Outlook 365 gets corrupt, which doesn’t allow the app to work properly.

So, to deal with this issue, you’ll have to repair the corrupt PST file.

There are many solutions available to repair PST files, but the Kernel for Outlook PST Repair tool stands out from the crowd. It is a great Outlook repair tool to repair and recover data from corrupt PST files. Using this tool, one can easily repair and recover encrypted password-protected files. And you can save recovered PST data to DBX, MBOX, MSG, EML, TXT, RTF, HTML, and MHTML formats It allows users to repair even large-sized PST files that are often not compatible with other tools.

Also, you can recover permanently deleted items and attachments from Outlook with the help of this Outlook repair tool. You can even migrate PST files to Office 365 , email servers, and web email clients with the help of this software.

I hope you find this article helpful. Outlook is an essential application for organizations and individuals and is available with Office 365 subscription. When this application stops working, it can delay the work. Therefore, it is highly important to get rid of such errors. Outlook 365 is a great email client, but sometimes things go wrong. We have outlined the best methods for repairing Outlook 365 on Windows 10. Hopefully, one of these solutions will help you get your email client up and running again.

All these methods are effective in resolving the issue. But if you are still facing problems with your Outlook 365, do not hesitate to use our recommended tool as it has excellent features that can help you repair your corrupt or damaged PST files easily. The trial version of the software is also available for free download, so you can try it before purchasing the full version. Get Started Today!! Using the manual methods, you can quickly fix the errors with Outlook 365 application but using the professional solution is like going for the best. As a tech writer, I will highly suggest to try the repair tool to experience the change. We certainly have more insights coming your way. So, stay connected with our blog page.

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4 responses to “How to Repair Outlook 365 on Windows 10?”

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Great article! I found it very helpful in understanding how to repair Outlook 365 on Windows 10. I appreciate the step-by-step instructions provided by the writer in this article. Thanks for sharing!

I appreciate this article. It provides a lot of insight into how to fix Outlook 365 issues. The instructions are easy to understand and the troubleshooting tips are very helpful. Thank you for taking the time to write this article!

Very helpful article to repair Outlook 365 installed on Windows 10. I have done it successfully, by using above mentioned information. Thank you for help!

I found this article is very neat and clean and very informative too. It helped me to repair corrupted Outlook data. Thank you so much writer, you did a great job.

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Kernel for Outlook PST Repair

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How to Repair Outlook (365) in Windows 10/11 - 8 Solutions [MiniTool Tips]

This post provides some possible solutions to help you repair Outlook (365) problems on Windows 10/11. A free data recovery tool from MiniTool Software  is also provided to help you recover deleted/lost files from your computer and other storage media.

8 Possible Solutions to Repair Outlook (365) on Windows 10/11

Tip 1. restart computer and restart outlook.

If Outlook is not working correctly on your computer, you can restart your computer and restart Outlook application to see if it helps. Sometimes restarting the device and the program might fix the problem. If it doesn’t work, you can try other solutions below.

Tip 2. Run Windows Update

If your Outlook has problems, you can try to run a Windows Update  to make sure you have the latest updates for Outlook and other Microsoft Office apps.

For Windows 10, you can click Start -> Settings -> Update & Security -> Windows Update -> Check for updates to update your Windows 10 computer.

For Windows 11, you can click Start -> Settings -> System -> Windows Update -> Check for updates to check and install latest updates for your Windows 11 computer.

Microsoft Outlook Price | Purchase Outlook for PC/Mac

What’s the Microsoft Outlook price? How to get Microsoft Outlook for free? Check the analysis in this post.

Tip 3. Repair Outlook from Settings or Control Panel

You can try to repair Outlook (365) from Windows Settings or Control Panel. Check how to do it below.

From Settings:

From Control Panel:

WinZip Free Download Full Version for Windows 10/11

Guide for WinZip free download full version for Windows 11/10/8/7. Get WinZip file archive and compression tool to zip or unzip files with ease.

Tip 4. Open Outlook in Safe Mode

If Outlook can’t start or can’t work properly on your computer, you can try to start Outlook in Safe Mode to see if it works well.

Tip 5. Try Microsoft Support and Recovery Assistant

To fix Outlook issues, you can also try the Microsoft Support and Recovery Assistant tool.

Microsoft Support and Recovery Assistant (SaRA)  is a free application provided by Microsoft. This tool can currently fix Outlook, Microsoft Office, Microsoft 365, Microsoft Teams, and some other Windows problems.

You can try this program to repair Outlook setup, start, password, connection, and many other issues. You can try this program when your Outlook is unable to start, encounters password authentication issues, keeps saying “Disconnect”, stops responding, keeps crashing, etc.

To download and install Microsoft Support and Recovery Assistant, you can go to the websites below. This application is compatible with Windows 11/10/8/7.

After you install the SaRA tool, you can launch it to use it to troubleshoot Outlook problems. Outlook in any of the following Office versions can be scanned and troubleshooted.

Download/Use Microsoft Phone Link App to Link Android and PC

Download and use Microsoft Phone Link (Your Phone) app for Windows 10/11 to link your Android phone and PC to access all Android content right from the PC.

Tip 6. Try Professional Free File Repair Tools

If some of your Outlook files (.pst, .ost) are corrupted , you can try some top  free file repair tools  to repair the corrupted Outlook data files. Below are some choices for your reference.

Tip 7. Try Some Professional Outlook Repair Tools

To repair problems with the Microsoft Outlook application or files, you can also try some professional Outlook repair tools. Some of the tools are listed below.

Tip 8. Uninstall and Reinstall Outlook

If you installed the Office suite, you can use the professional free Microsoft Office Uninstall Tool  to easily uninstall Office. Alternatively, you can also open Control Panel or Settings to uninstall a program from your computer.

If you installed the stand-alone Outlook app, you can go to Apps and Features screen in Settings to remove the Outlook app from your computer.

Then you can download and install the latest version of Outlook (365) from Microsoft website, and enter you login credentials to launch the Outlook application.

Tip: If you still can’t repair Outlook (365) in Windows 10/11, you can contact the official Microsoft support to ask for help.

Google Docs App or Documents Download on Computer/Mobile

Check the guide for Google Docs app download for PC/Android/iPad/iPhone. Also learn how to download documents from Google Docs on a computer or mobile.

How to Recover Deleted/Lost Files for Free

If you want to recover deleted or lost files, you can try MiniTool Power Data Recovery  - a professional free data recovery program for Windows.

You can use MiniTool Power Data Recovery to recover any deleted/lost files, photos, videos, emails (including recovering Outlook files ), etc. from Windows computers, USB flash drives, memory cards, external hard drives, SSDs, and more.

This program can help you recover data under various data loss situations, e.g., mistaken file deletion, malware or virus infection, hard drive failure, or other computer problems.

MiniTool Power Data Recovery has an intuitive interface and even novice users can operate it with ease. It is free and clean.

Download and install MiniTool Power Data Recovery on your Windows computer and check how to use it to recover deleted/lost files below.

Free Download

Tip:  If you want to select specific types of files to scan, you can click the Scan Settings  icon on the left panel of the main UI.

MiniTool Power Data Recovery

This post introduces some best free Microsoft alternatives for Windows, Mac, Android, iPhone/iPad. Choose your preferred free office software to edit docs, etc.

Free PC Backup Software Program

Here we also introduce a professional free PC backup program to help you fast back up your computer’s data.

MiniTool ShadowMaker  is a top free backup application for Windows.

You can use this program to easily backup and restore your Windows operating system.

Still, you can freely select files, folders, partitions, or the whole disk content to back up to external hard drives, USB flash drives, or network drives.

Aside from backup method, MiniTool ShadowMaker also supports File Sync. You can select files and easily sync them to another location or device.

As a professional data backup program, it also supports automatic backup that lets you set a schedule to automatically back up selected data. It also supports incremental backup that allows you to only keep the latest backup copy.

It features a fast backup speed and helps you back up large files at a superfast speed.

Download and install MiniTool ShadowMaker on Windows 11/10/8/7 and use it to back up the data and system of your Windows computer now.

MiniTool ShadowMaker

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This post offers 8 possible solutions to help you repair Outlook in Windows 10/11 computer. A free file recovery tool and a free PC backup application are also provided to help keep your data safe. Hope it helps.

If you have any other computer problems, you may visit MiniTool News Center.

To find and try more programs from MiniTool Software, you can visit its official website. More free tools are listed below.

MiniTool Partition Wizard  is a full-featured free disk partition manager for Windows. You can use it to easily create, delete, extend, resize, merge, split, format, wipe partitions. You can also use it to convert partition/disk format, test hard drive speed, analyze hard drive space, migrate OS to SSD/HD, check and fix disk errors, and more. It lets you easily manage hard disks from all aspects.

MiniTool MovieMaker  is a free video editor & movie maker for PC. You can use this program to edit videos with ease. You can easily trim video to cut unwanted parts, add effects/transitions to video, add music or subtitles to video, export video in HD MP4, etc.

MiniTool Video Converter  is a 3-in-1 tool for Windows. You can use it to convert any video or audio file to your preferred format, record computer screen by selecting any area, and download YouTube videos for offline playback. It is a 100% clean and free.

MiniTool Video Repair  is a professional free video repair tool for Windows. You can use it to repair corrupted MP4/MOV video files for free. Advanced Repair is also supported.

You can download and try these programs. If you have any problems with using these tools, you can contact [email protected] .

About The Author

Alisa

Position: Columnist

Alisa is a professional English editor with 4-year experience. She loves writing and focuses on sharing detailed solutions and thoughts for computer problems, data recovery & backup, digital gadgets, tech news, etc. Through her articles, users can always easily get related problems solved and find what they want. In spare time, she likes basketball, badminton, tennis, cycling, running, and singing. She is very funny and energetic in life, and always brings friends lots of laughs.

User Comments :

How to fix Microsoft Office 365 subscription and license problems

Being hit with a license error when you try to use Microsoft Office 365? There's an easy fix.

how do i fix outlook 365 problems

I have an Office 365 (opens in new tab) license, and it's still definitely valid and very much paid for, but Excel didn't seem to think that was the case when I went to open the app.

Fortunately, there's a really easy fix to the problem that doesn't involve contacting Microsoft and yelling at anyone on the phone.

How to fix Microsoft Office 365 subscription problems

Here's what you should do to resolve the issue:

In some cases, errors can be fixed with the quick repair option, but when a license comes into play you need to go online to ensure everything syncs back up correctly.

Office will now download whatever files and data it needs to repair itself. Once the process is complete, fire up the misbehaving application again. You should no longer see an error message stopping you from being productive like a boss!

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How to scan Outlook by using the Microsoft Support and Recovery Assistant

Original KB number:   4098558

The Microsoft Support and Recovery Assistant (SaRA) uses advanced diagnostics to report known problems and details about your Microsoft Outlook configuration. Reported problems are linked to public-facing documentation (usually a Microsoft Knowledge Base article) for possible fixes. If you're a Helpdesk professional, you can review customer reports that are generated in HTML format.

The SaRA scenario that is described in this article replaces the Outlook scanning functionality that was originally provided by the Office Configuration Analyzer Tool (OffCAT).

For more information about SaRA, see About the Microsoft Support and Recovery Assistant .

System requirements

The following operating systems are supported:

The Outlook program in any of the following Office versions can be scanned:

If you are running Windows 7 (any edition), you must also have .NET Framework 4.5 installed. Windows 8 and later versions of Windows include at least .NET Framework 4.5.

Installing SaRA

To install SaRA and automatically start the scenario for scanning Outlook, select the following link:

Advanced diagnostics-Outlook

By downloading this app, you agree to the terms of the Microsoft Services Agreement and Privacy Statement .

How to scan an Outlook configuration for known issues

The Microsoft Support and Recovery Assistant can resolve issues in many programs. To scan Outlook for known issues and create a detailed report of your Outlook configuration, follow these steps:

Select Advanced diagnostics , and then select Next .

Select the Advanced diagnostics option.

Select Outlook , and then select Next .

Select Outlook item.

When you are prompted to confirm that you are using the affected machine, select Yes , and then select Next .

Confirm that you are using the affected machine.

After your account is validated in Microsoft 365, the scan automatically begins.

The scan may take several minutes to run.

Scan automatically begins.

You see the following error message if your account is in Microsoft 365 and SaRA cannot validate your credentials.

Error message details.

If you select Back to reenter your credentials, and you see this same error, select Back again, and then use the following sample credentials to mimic a non-Microsoft 365 account:

Sign in account example.

Any non-Microsoft 365 account will not be authenticated through the Microsoft 365 service. In this case, SaRA gives you an option to continue. Select the Next button to continue.

The scan is complete when you see We're done collecting your Outlook configuration details .

The scan is complete.

Review your Outlook scan

Your scan report includes these separate tabs:

Issues found

Configuration Summary

On the Issues found tab, you are provided a list of configuration issues that are detected during the scan.

List of configuration issues.

Select an issue to expand it for a more detailed description. There is also a link to an article that contains steps for resolving the issue.

Detailed view

The information on the Detailed View tab is intended for advanced users, Helpdesk personnel, and IT administrators. This tab contains configuration information for diagnosing an Outlook issue from the client-side. This includes the following items:

The information is provided in a tree view. Select any node to expand or collapse it.

Information under the Detailed view tab.

This scenario also collects important configuration information for Microsoft Excel, Microsoft PowerPoint, and Microsoft Word. To see this information, expand the Miscellaneous section in the tree view.

Tree view of Excel details

The information on the Configuration Summary tab is a snapshot of the configuration settings that are most frequently collected and analyzed.

Information under the Configuration Summary tab.

Viewing scan results in a browser

To increase the viewing area for the scan results, select View results in my browser . This view displays the whole scan report, including all three tabs, in your default browser.

Whole scan report and the three tab.

The Detailed View in your browser contains a search feature that is not found when you view this information in the SaRA window.

Search feature in Detailed View tab.

Sharing your scan results

After you review your scan results, select Next . The next screen provides an opportunity to see the log files that were saved on your computer ( See all logs ) or to view the log again ( View log ).

The scan file is ConfigurationDetails_{CorrelationId}.html. It's located in the %localappdata%\saralogs\UploadLogs folder, for example, C:\users\<username>\AppData\Local\saralogs\UploadLogs .

Users who have a Microsoft 365 account

If you sign in to SaRA by using an account in Microsoft 365, you also see an option to send your files to Microsoft. This option is helpful if you are working with a Microsoft support engineer. Select Send to have your log files securely uploaded.

Select Send to have your log files securely uploaded.

Select Don't send if you don't want to upload your log files. If you have to share your log files with someone, select See all logs to open the folder that contains all the logs that are created by SaRA.

Folder contains all the log screated by SaRA.

If you select Send , only the .json file is uploaded to Microsoft.

Users who do not have a Microsoft 365 account

If you sign in to SaRA by using an account that is not in Microsoft 365, there is no option to send your files to Microsoft.

Screenshot shows no option to send your files to Microsoft.

For example, if you have to share your log files with your Helpdesk, select See all logs to open the folder that contains all the logs that are created by SaRA.

Example of See all logs.

You can copy the file from this folder to share with the person who is helping you to fix your Outlook issue.

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NAKIVO Blog > Office 365 Administration and Deployment > Common Office 365 Issues and How to Solve Them

October 19, 2020

by Michael Bose

Common Office 365 Issues and How to Solve Them

You may encounter issues when using any application, and Office 365 is no exception. Not all issues are caused by bugs unpatched by the software vendor. Many issues can be fixed on the client side. If you encounter an issue in Office 365 that can only be fixed by the vendor, Microsoft will release an update to resolve any known issues as soon as possible. However, the probability of an Office 365 outage due to an issue on Microsoft’s side quite low. Is Office 365 down? How to sign into an Office 365 account? When you work with Office 365, it is useful to have fixes for possible Office 365 issues today and this blog post covers Office 365 issues, Office 365 troubleshooting, and possible solutions to detect and fix Office 365 known issues.

Office 365 Activation Issues

To work with Office 365 applications, your Office 365 has to be activated. If it’s not activated, the following error message is displayed:

Product deactivated.

To keep using Word without interruption, choose the option below to reactivate.

Enter key – I have a product key .

Sigh In – Add this computer to an active account .

Check the version of Microsoft Office installed on your computer. Check your subscription name and expiry date. Office 365 applications installed on a computer must connect to Microsoft servers over the internet at least once every 30 days to check and validate the license. If the installed Office 365 applications don’t connect to Microsoft servers for more than 30 days in a row, these applications are deactivated until they connect to Microsoft licensing servers and the license is renewed.

If you installed a version of Microsoft Office that is different from the Office 365 version provided by your subscription plan, uninstall the existing Microsoft Office suite from your computer and install the correct version. Then try to activate the installed Office 365 suite again on your computer. You may need to remove old Microsoft Office licenses from your computer and install a new one.

Check the internet connection. Make sure that network access to the Microsoft servers is not blocked. Check the firewall on your computer, the router, and DNS configuration.

If your Office 365 subscription has expired, buy a new license and extend your Office 365 subscription for a new period. Then try to open the Office 365 applications again.

If multiple versions of Microsoft Office are installed, Office 365 activation issues may occur. Uninstall old versions of Microsoft Office from your computer and try to activate Microsoft Office 365 again.

If you want to use Office 365 applications installed on a terminal server, you should use Office 365 Pro Plus, which supports Shared Computer Activation. Read the blog post about using Office 365 on a terminal server.

Office 365 Login Issues

Office 365 login issues are common among Office 365 users. Let’s explore some of them and check recommendations that can be used for Office 365 troubleshooting. A wrong ID or password is the common cause of a login failure. The error message is displayed when you try to sign into the Office 365 portal:

“ We are unable to recognize this user ID or password .”

Possible causes of this error

You have entered the wrong username or password. Check your password, and check that CAPS LOCK is not turned on. Passwords are case sensitive. Try not to copy a password from a text document, Skype, or other application, and enter a password manually. The recommended practices state that you should avoid storing passwords in text documents or messaging apps.

An Office 365 administrator has changed a password for your Office 365 account or deactivated your account. Ask your system administrator to provide credentials for you.

How to fix Office 365 login issues

If you have forgotten your password for the Office 365 account, try to recover or reset the password.

Use this link to recover work or school accounts: https://passwordreset.microsoftonline.com (if your Office 365 administrator has enabled resetting passwords by users).

Use this link to recover a personal Microsoft account: https://account.live.com/ResetPassword.aspx

Always define a recovery email address when configuring your Office 365 account. If an incorrect password is entered multiple times, after several unsuccessful login attempts, your Office 365 account will be locked. If your account is locked but you have not defined your recovery email address, try to fill out the Microsoft account recovery form.

This workflow can be used if two-factor authentication is not enabled.

Issues with the Safari Browser

Problems with Safari can occur due to the Intelligent Tracking Prevention (ITP) feature of the browser when using Office 365 online apps.

Perform the following steps to resolve the issue:

Issues with Office 365 Outlook

If you use Microsoft Office 365 Outlook as a standalone email client and you cannot send and receive email messages, check connection settings of Outlook.

Make sure that you have entered the correct Office 365 username and password.

Check POP3 and SMTP settings for connecting to Microsoft mail servers (addresses of servers, ports, encryption, authentication). If IMAP is used, check IMAP settings.

Synchronization Issues

Office 365 syncing problems are common for Office Mobile, but sometimes similar issues may occur for Office 365 desktop applications like OneDrive and Outlook.

If synchronization for OneDrive fails, check whether you have the latest version of the OneDrive client installed on your computer, check the internet connection, and make sure that files don’t exceed OneDrive limits (the maximum file size, the correct file name, the number of objects in a folder, and so on).

As for Outlook, synchronization problems may occur after installing updates like KB2837618 or KB2837643. The Outlook application may crash after launching or display errors when using IMAP for an email account:

How to fix these issues?

Uninstall updates (KB2837618 and KB2837643) to fix the related IMAP synchronization issues for Outlook 365.

Click Start , open Control Panel , and then open Programs and Features .

Select KB2837618, and click Remove .

Select KB2837643, and click Remove .

Restart Windows and try to run Microsoft Office Outlook 365 now, and check whether everything is working correctly.

Update Issues

Microsoft recommends updating Windows, Microsoft Office and other software regularly. Microsoft updates are released on a regular basis and allow you to protect software against known threats, fix bugs, and so on. Office 365 known issues are usually fixed by these updates. Let’s find out what you can do if updates are not installed automatically, and what factors can cause update issues. Open one of the installed Office 365 applications, and click File > Account > Update Options > Update Now to check whether Office 365 updates are installed. If they have not been installed, go ahead and install them.

Installing Office 365 updates can fail for different reasons, and some of them are listed below.

The operating system on which your Office 365 applications are installed does not support the updated version of Microsoft Office 365. Windows 7 and Windows 8 do not support the latest Office 365 versions and only Windows 10 support this version (Windows Server operating systems are not covered here).

An internet connection is not available or a firewall is blocking network connections.

If you are sure that there are no connection issues, but your Office 365 is not detecting a new update (and you can’t see the “ You’re up to date! ” message), check the Office 365 update channel. There are multiple Office 365 update channels. Some of them allow users to get updates before the main release while others provide updates at a later time. The update channel used by Office 365 depends on your Office 365 subscription plan and on configuration.

Check your update channel by opening an Office 365 application and going to File > Office Account . Then click the About Outlook button. The full list of Office 365 update channels is provided below.

Beta Channel is available for all Office 365 subscription plans. Updates are available for 4–6 weeks before the main release.

Current Channel (Preview) is available for all Office 365 subscription plans. Updates are available for 2–4 weeks before the main release.

Current Channel . Available for all subscription plans. It is the default update channel.

Monthly Enterprise Channel is available for Business and Enterprise subscription plans one month after the main release.

Semi-Annual Enterprise Channel (Preview) is available for Business and Enterprise subscription plans with a delay of 2–6 months compared to the main release.

Semi-Annual Enterprise Channel is available for Business and Enterprise subscription plans with a delay of 6–24 months compared to the main release.

One-time purchase installation is available for Microsoft Office 2016 and 2019 installations. Bug fixes and security patches are provided with updates.

Volume License for MSI-based installation of Office 2016 and Office 2019 Version 1808. Available for volume license installations. Bug fixes and security updates are provided.

Office 365 Problems Caused by Add-Ins

Check Add-Ins installed in Office 365 applications. Sometimes Add-Ins can cause problems with Microsoft Office. These problems include low performance or program crashing. Try to disable Add-Ins and run Office 365 applications without them. Press the CTRL key and click the shortcut to run the Microsoft Office application to disable Add-Ins once. You are asked to use a safe mode in this case. A safe mode is useful for Office 365 troubleshooting.

Tools That Can Help You

There are some native tools provided by Microsoft that can help you find and solve Office 365 issues today. Let’s review the most popular ones.

The Office 365 repair tool

The Office 365 repair tool can help you fix the majority of Office 365 problems for installed Office 365 applications (not applicable if you use online apps only). You can try to repair Office by using the appropriate built-in tool.

Open Control Panel , and go to Programs and features .

Select Office 365 , and click Repair .

There are two options: Quick repair and Online repair . Online repair provides more repair capabilities and performs a more extensive check.

Checking Office 365 service health

Service health is the online tool that is available for Office 365 for organizations (if you have work and school Office 365 accounts). Only Office 365 administrators can access this tool in the Office 365 admin center . Use the Service health dashboard to find possible Office 365 issues and read the provided advice on how to fix them.

Office-365-troubleshooting-with-the-Service-health-tool-provided-by-Microsoft

The Remote Connectivity Analyzer

Use the Remote Connectivity Analyzer to identify connectivity issues that may be the cause of Office 365 services not working as they should. This online tool can help you detect issues by using tests for the following services and features:

Microsoft Support and Recovery Assistant

If after running the Remote Connectivity Analyzer Office 365 problems are not fixed, try using Microsoft Support and Recovery Assistant . This tool should be installed on a computer as a standalone application. After installing and running the application and entering the Office 365 account credentials, run tests to identify the problem and find the needed solution. Follow the instructions provided by the assistant to find and resolve Microsoft Office 365 problems.

Try testing configuration of your Office 365 email system, and fix the problems with Office 365 that are preventing users from using the email services. Microsoft Support and Recovery Assistant can help you resolve Microsoft Office, Office 365, and Outlook problems.

If the provided recommendations don’t help you resolve the issues or you want to send Office 365 complaints, call Microsoft support.

Microsoft Office 365 Backup

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8 Most Common Office 365 Problems and How to Fix Them

Microsoft Office 365 is one of the essential programs that ensure productivity and collaboration across teams in an organization. Its suite of useful applications and cloud-based services provides an all-in-one tool that streamlines communication and processes in a business. However, it’s not uncommon to encounter issues that can interfere with the team’s work.

So what are the usual Office 365 problems and how can a business or user solve them? The most common Office 365 issues that individuals may experience are installation problems, sign-in difficulties, synchronizing errors, access issues to mail and calendars, recovery of deleted files, storage limits, file sharing problems, and update problems. The troubleshooting solutions are also included in this guide.

8 Common Office 365 Issues and Their Troubleshooting Solutions

The programs included in Office 365 can make your business’s operations and systems run smoothly. It also makes day-to-day work easier for employees so they can remain productive and deliver on their tasks more efficiently.

However, these programs can still run into some challenges and issues with their functionalities. And even if your team has the most up-to-date version of Office 365, you may still come across days when the applications aren’t performing as they’re expected. Here are some of the known issues that have been experienced by other users and how to handle them:

Problem 1: Office 365 installation is too long or there’s no progress

So you’ve decided to purchase and equip your business with the Office 365 program, but you encountered an error message in the middle of the installation. Most of the time, you may see an alert that says “It looks like you’re on slow connection” or you notice that the installation client suddenly hangs and closes.

How to Troubleshoot: The best thing you can do is to stop the installation and start from the beginning. Try to restart the computer and re-open the installation client. It’s also better to switch to a wired connection than a wireless network to get faster installation speed.

You can also temporarily turn off your firewall settings or antivirus software. If it looks like the program has been installed but you can’t open it, go to Programs and Features in the control panel. You’ll see the “Uninstall or change a program” window where you have to access the list of applications, find the Office 365 program, and initiate online repair.

Problem 2: You can’t sign in to the account

Sign-in problems can occur when a user mistypes their password or when the service that runs and handles the accounts is currently down.

How to Troubleshoot: This can be easily avoided by making sure that the password matches the account username that was provided during initial account creation. To avoid forgetting the password, you can secure it in a password manager which you can easily access. If it still doesn’t work, click the “Can’t Access Your Account” link which will direct you to a password reset page to verify your identity and create a new password.

Problem 3: You can’t sync files accessed from Office Mobile to desktop

One of the features of Office 365 is that users can work on their current Word or PowerPoint projects either on their mobile device or computer. As long as you’re working with your account logged in, the application should automatically save your progress on OneDrive and sync it to your device. However, errors can happen when the device is currently offline or not connected to a network.

How to Troubleshoot: To solve this issue, try to close the program and reopen the file. This will restart your OneDrive account and give it time to access any latest documents. If it appears that you weren’t signed in to OneDrive when you were trying to save the file, you can try to go to the “File” tab and click on “Save Copy.” This will then instruct you to sign in to your OneDrive account so you could simply and easily move the file to the folder you want it to be in.

Problem 4: Emails aren’t showing in Outlook Mobile and Outlook Mail

This is another case of a synching error between your mobile and desktop device. There are cases when some emails may come in your inbox folder delayed or they won’t show up at all. This issue can also be a result of poor internet connection.

How to Troubleshoot: You can solve this problem by signing out of your account and signing in again. In Outlook Mobile, go to the menu on the left side of the screen, open the settings cog, and click the account name that won’t sync properly. In Outlook Mail, you can find the account permissions at the settings cog located in the bottom-left corner and select “Manage Accounts.”

Problem 5: You accidentally deleted an important file and want to recover it

If you have a disorganized folder or keep too many files, it’s easy to make the mistake of deleting the wrong file and sending it to the recycle bin. Fortunately, documents that were sent to the recycle bin aren’t immediately and permanently removed.

How to Troubleshoot: Deleted items from Microsoft Teams or SharePoint remain in the recycle bin for a period of time before they’re completely erased. Simply go to the SharePoint site where the file is originally placed, go to the recycle bin, and check all the files that you wish to restore.

Problem 6: The maximum storage amount has been reached

When this error pops up while you’re trying to save or upload a file, it usually means that you have used up the storage limit included in the Office 365 subscription.

How to Troubleshoot: You can simply solve this by purchasing an Office 365 Extra File Storage add-on to increase your storage capacities. To prevent encountering this issue, the team should do regular cleanups of the recycle bin since the deleted files can also temporarily take up some of your existing storage space.

Problem 7: You can’t collaborate and edit a SharePoint file with another user

Office 365 allows collaboration across team members by easily setting up access permissions. When this problem occurs, it usually means that you don’t have permission to open and edit the file.

How to Troubleshoot: The easy solution for this issue is to edit the permissions and grant access to the users you want to collaborate with. Open the file, click “Share,” and select the dropdown list which will show options to whom you want to give edit access. You can change the settings to give access to anyone in the organization or you can send an edit invitation to only specific people. 

Problem 8: You’re having trouble installing new Office 365 updates

Businesses who are subscribed to Office 365 are given free updates and feature improvements to ensure the efficient performance of the programs. However, you may encounter some installation issues which can leave you with an outdated version of Office 365.

How to Troubleshoot: For Office Mobile, updates are found on the application store. If you can’t download, it’s most likely a phone storage issue or system problem. Try restarting your phone or offloading and deleting some applications to make space for the update. On the desktop, you can access updates in the Microsoft Store or through “Windows Update” on the settings page. To avoid future installation problems or manual downloads, you can configure the settings and tick the box to allow automatic download updates.

Advantages of Having an Office 365 Suite

There are many reasons why a business should consider having an Office 365 suite. From more streamlined processes, collaboration culture, and large file storage capacities, here are some of the benefits of Office 365:

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IMAGES

  1. Ways to Repair Outlook 365

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  2. How to troubleshoot and fix common problems in Outlook

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  3. クリックでOutlookおよびOffice 365の問題を修正するツール

    how do i fix outlook 365 problems

  4. How to Fix Outlook and Office 365 Problems ( Microsoft Official Tool )

    how do i fix outlook 365 problems

  5. Fix Outlook and Office 365 problems with Microsoft Support and Recovery Assistant for Office 365

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  6. How Do I Fix Outlook 365 Search

    how do i fix outlook 365 problems

VIDEO

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  3. How To Fix Microsoft Outlook Is Not Responding Not Starting Or Not Opening

  4. Fixing Outlook Startup Problem

  5. How To Fix Outlook Detected an Add in issue in Outlook

  6. Fix outlook not opening or outlook not responding in windows 10

COMMENTS

  1. Troubleshooting Outlook issues

    You can start Outlook in safe mode, disable your add-ins, and then try to open Outlook normally. In Windows 10, click Start . Type Outlook /safe, in the Search programs and files and then click OK.

  2. Fix your Outlook email connection by repairing your profile

    In Outlook 2010, Outlook 2013, or Outlook 2016, choose File. Choose Account Settings > Account Settings. On the Email tab, choose your account (profile), and then choose Repair. Note: The Repair option isn't available if you're using Outlook 2016 to connect to an Exchange account. Follow the prompts in the wizard, and when you're done ...

  3. Fix Outlook connection problems in Microsoft 365

    There are Microsoft diagnostics that you can run to troubleshoot connectivity issues. The diagnostics perform automated checks to detect issues and provide possible solutions to fix them. Select Run Tests: Outlook User Connectivity to download and run the diagnostic. This feature requires a Microsoft 365 administrator account.

  4. Outlook 365 Error message and 'Repair Now' problem

    Report abuse. Start with this. Restart the PC, once fully loaded, repair Office,> Apps & Features>Select Office your version >Modify /Repair, once the repair completes re-test. If still an issue; Restart the PC, once fully loaded, hold the Ctrl key when starting OL to force safe mode, what then?

  5. Outlook office 365, sync issues (this computer only)

    Outlook office 365, sync issues (this computer only) hello there. The email seems to work fine, only for the notice at bottom of the input folder about the sync issues. ... And if you receive the notifications again or have any problems on this issue, please share with us at any time. Regards, Marvin-----* Beware of scammers posting fake ...

  6. How do I Repair Microsoft Outlook 365 in Windows 10?

    Select the Modify option. When the Account Control Prompt appears, click on Yes. This opens the repair dialog box. Note: The box displays two options to repair the Outlook 365 application: Quick Repair and Online Repair. Let's discuss the two repair options one-by-one. Use the Quick Repair option first.

  7. Fix Outlook and Office 365 problems with this Microsoft Tool

    If you need to fix Outlook and Office 365 problems, you can use the Microsoft Support and Recovery Assistant for Office 365 to resolve the issues easily. If it cannot fix the problem, it will ...

  8. What To Do When Microsoft Outlook Won't Open

    Go to the Email tab. Choose Repair to open the Repair wizard (this option is not available for Outlook Exchange accounts). Follow the prompts to complete the wizard and restart Outlook. Repair Outlook data files. If Outlook still doesn't open, use the Inbox Repair tool to find and possibly fix the problem. Exit Outlook.

  9. How to Repair Outlook 365 on Windows 10?

    Select Online Repair and click Repair. A notification will appear: " We'll download files to repair your installation. " Click Repair to start the repairing process. After completing the Online Repair process, the " Office 365 is installed now " message will appear on the screen. Click Close to end the process.

  10. How to Repair Outlook (365) in Windows 10/11

    Scroll down to find and select your Microsoft Office product like Microsoft 365. Click the Modify button to launch the Office repair tool. This will repair the Office suite. If you installed the stand-alone Outlook app on your computer, you can select it to repair. Next, you can choose a repair option.

  11. Windows 11

    Windows 11 - How to Repair and Fix Office 365 or Office 2019 in Windows 11How to Fix Outlook and Office 365 Problems Become a professional IT System Engineer...

  12. How to fix Microsoft Office 365 subscription and license problems

    How to fix Microsoft Office 365 subscription problems. Here's what you should do to resolve the issue: Right-click on the Start button. Select apps and features. Find the application from the list ...

  13. Scan by using Microsoft Support and Recovery Assistant

    To scan Outlook for known issues and create a detailed report of your Outlook configuration, follow these steps: Select Advanced diagnostics, and then select Next. Select Outlook, and then select Next. When you are prompted to confirm that you are using the affected machine, select Yes, and then select Next. After your account is validated in ...

  14. Office 365 Issues and the Ways They Can Be Handled

    Uninstall updates (KB2837618 and KB2837643) to fix the related IMAP synchronization issues for Outlook 365. Click Start, open Control Panel, and then open Programs and Features. Select KB2837618, and click Remove. Select KB2837643, and click Remove.

  15. 8 Most Common Office 365 Problems and How to Fix Them

    Microsoft Office 365 is one of the essential programs that ensure productivity and collaboration across teams in an organization. Its suite of useful applications and cloud-based services provides an all-in-one tool that streamlines communication and processes in a business. However, it's not uncommon to encounter issues that can interfere with the team's work.