Office 365 Issues and How to Fix Them

To fix these related Office 365 issues, you can try disabling Add-Ins and then running Microsoft apps without them. These add-ins can cause issues such as app crashes or significant performance degradation. Office 365 syncing problems are common for Office Mobile, but sometimes similar issues may occur for Office 365 desktop applications like OneDrive and Outlook. After looking deeper into my problem with my RDS servers, the only solution I found is to run the script of @spiceuser-lijul into a GPO at each user logon.

Common Office 365 Issues and How to Solve Them

To avoid data loss when using cloud applications, perform Office 365 data backup. NAKIVO Backup & Replication is a universal data protection solution that can protect not only Office 365 but also virtual, physical, and cloud environments. Download the software and configure data backup in your environment. The issue the users face is Teams or Outlook just refused to log in.

Unresolvable Problem on Signing In Microsoft Office 365 Apps on Windows 10

• The only fix is to delete the Teams folder in %appdata%Microsoft and delete the Outlook profile and re-create it.
• If you encounter an issue in Office 365 that can only be fixed by the vendor, Microsoft usually releases an update to resolve any known issues as soon as possible.
• If after running the Remote Connectivity Analyzer Office 365 issues are not fixed, try using Microsoft Support and Recovery Assistant.
• This tool should be installed on a computer as a standalone application.
• So hopefully the official MS support answer and documentation will change.
• In this case, consider using safe mode, which is useful for Office 365 troubleshooting.
• Microsoft recommends updating Windows, Microsoft Office and other software regularly.
• If multiple versions of Microsoft Office are installed, Office 365 activation issues may occur.

We enabled it thinking that would fix the problem, but sadly no. If you are having a lot of custom led signage end-user support headache because of Office365 quirkiness… well, it may very well be because this rather critical module is missing. We haven’t identified WHY it is missing for some user Win10 installs and not others yet. OneDrive issues are a separate category of problems with Microsoft 365.

Additional resources

I highly recommend NOT just disabling modern authentication using that registry entry because you will have all manner of headache with other Office365 applications. 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. If after running the Remote Connectivity Analyzer Office 365 issues are not fixed, try using Microsoft Support and Recovery Assistant. This tool should be installed on a computer as a standalone application.

Fix authentication issues in Microsoft 365 apps when you try to connect to a Microsoft 365 service

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



Organizations value the capabilities that the Microsoft 365 suite provides for shared access and simultaneous file editing for team members. However, sometimes employees may not have the required permissions to open and edit an item. If you have forgotten your password for the Office 365 account, try to recover or reset the password.