Follow the instructions provided by the assistant to find and resolve Microsoft Office 365 problems. 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. Make sure that network access to the Microsoft servers is not blocked.

Office 365 Troubleshooting Issues: Common Problems and How to Solve Them

Discover how IT leaders can address key Microsoft Copilot questions on cost, deployment, security, and integration to maximize ROI and adoption. Boost your SMB’s security and compliance with Microsoft 365 Business Premium. Discover Defender and Purview add-ons for enterprise-grade protection at SMB-friendly pricing. In these cases, direct escalation to Microsoft or working with a Microsoft CSP partner, such as TrustedTech, can expedite resolution and minimize downtime. Our licensing engineers can help triage complex problems and ensure you're on the right support path.

Domain Verification Issues

Issues can also arise from incorrect account permissions, which can affect access to various Office 365 features. Domain verification issues can also prevent the normal use of the Microsoft Office 365 suite. You can unintentionally send an important Microsoft 365 item to the recycle bin, especially if you have too many files on your device’s hard drive. Still, the files you send to the recycle bin are not permanently removed. Installing Office 365 updates can fail for different reasons, and some of them are listed below. Safari can cause Microsoft 365 issues due to the Intelligent Tracking Prevention (ITP) feature.

• If you tried to enter your credentials, and it failed, even when you checked if every letter of it is correct.
• The serious problem occurs when we talk about any external threats like malware or ransomware that are not so easy to prevent and mitigate.
• Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
• 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).
• They can either be simple, like the OneDrive service not running or the missing OneDrive icon on the taskbar, or more complex, like OneDrive conflicting with Microsoft 365.

Repair Outlook OST File Not Working in Office 365 – Complete Fix (

For advanced troubleshooting, FixTechGuide offers remote support to restore performance and indexing accuracy for Outlook and other Office apps. With apps syncing across devices and cloud services, sync issues are among the most frequently reported M365 problems. These can include missing files, ghost icons, or documents that do not update in real-time. Check the version of Microsoft Office installed on your computer and your subscription name and expiry date.



Microsoft offers several built-in tools to help identify and resolve persistent issues. This ensures that the system-wide search index service is active and linked to Office 365 apps. 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. This error appears when you credential loop in Microsoft 365 attempt to upload or save a Microsoft 365 item. It indicates that you have reached the storage limit specified by your subscription plan.

Office 365 Repair Tool

In addition to the Office 365 problems explained in the blog post, you may encounter issues that cause data loss. 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. You can resolve this Office 365 issue simply by purchasing additional cloud storage space from Microsoft.





Download the tool from Microsoft and run the Outlook diagnostic to auto-detect server and account issues. You can disable Add-Ins on launch by pressing CTRL and hitting the Microsoft Office app shortcut. In this case, consider using safe mode, which is useful for Office 365 troubleshooting. To fix these related Office 365 issues, you can try disabling Add-Ins and then running Microsoft apps without them.

Microsoft Support and Recovery Assistant

Microsoft Support and Recovery Assistant can help you resolve problems with Microsoft Office, Office 365, and Outlook. OneDrive issues are a separate category of problems with Microsoft 365. They can either be simple, Troubleshoot Office 365 Sync and Login Issues like the OneDrive service not running or the missing OneDrive icon on the taskbar, or more complex, like OneDrive conflicting with Microsoft 365.

Microsoft Office 365 Activation Issues

Consider implementing a regular storage cleanup practice with Microsoft 365 recycle bin checks. Keep in mind that the files you delete can temporarily consume storage space. These add-ins can cause issues such as app crashes or significant performance degradation. 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 mailbox not updating on IMAP 8 do not support the latest Office 365 versions, and only Windows 10 supports these (Windows Server operating systems are not covered here).