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. If the provided recommendations don’t help you resolve the issues or you want to send Office 365 complaints, call Microsoft support. Try testing the configuration of your Office 365 email system and fix the problems that are preventing users from using the email services. Microsoft Support and Recovery Assistant can help you resolve problems with Microsoft Office, Office 365, and Outlook.

⚙️ Step 3: Repair Microsoft 365 Installation

Find and edit files, scan documents, and create content on the go with access to Copilot Chat, productivity apps, and more — all in one place. The steps to access the repair tool vary depending on your operating system. If a Microsoft 365 application such as Word or Excel isn't working correctly, sometimes restarting it will Office 365 sync problems and login fixes fix the problem. OneDrive issues are a separate category of problems with Microsoft 365. Below we provide a more detailed list of issues and corresponding solutions.

Repair an Office application

• You can disable Add-Ins on launch by pressing CTRL and hitting the Microsoft Office app shortcut.
• Download and run the official Microsoft Support and Recovery Assistant (SaRA).
• Check the firewall on your computer, the router, and DNS configuration.
• Microsoft updates are released on a regular basis and allow you to protect software against known threats, fix bugs, and so on.
• After installing and running the application and entering the Office 365 account credentials, run tests to identify the problem and find the needed solution.

Therefore, you can locate the original files at their primary SharePoint site and restore them from there. If your Office 365 subscription has expired, buy a new license and extend your subscription for a new period. Then try to activate the installed Office 365 suite again on your computer.

It indicates that you have reached the storage limit specified by your subscription plan. 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. File and storage issues with Microsoft Office 365 are more serious than other issues. They are not merely inconvenient and slow down work but can also lead to critical data loss.

Common Office 365 Issues and How to Solve Them

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 resolve Outlook not sending emails fast online apps only). 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. Office 365 troubleshooting is an important aspect of building a secure and reliable IT environment. In addition to the Office 365 problems explained in the blog post, you may encounter issues that cause data loss.

Microsoft Support and Recovery Assistant

Open the required file, hit Share and then check the list of users that you can give the rights to edit a file. You can set access permissions for the entire organization or invite only the users you specify. Editing file permissions and providing users with appropriate access is a simple way to solve such Microsoft 365 problems. For example, items that you delete from SharePoint or Microsoft Teams are retained in the recycle bin for a certain period before permanent deletion.





Check the firewall on your computer, the router, and DNS configuration. 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.

Office 365 Repair Tool

This restores missing or corrupted Office components that affect search indexing. 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 Office 365 Sync Errors Fix them. Reboot your system and try to launch your Outlook app after to check if the synchronization issues are solved.

Stay Updated

Microsoft updates are released on a regular basis and allow you to protect software against known threats, fix bugs, and so on. Let’s find out what you can do if updates are not installed automatically, and what factors can cause update issues. Check POP3 and SMTP settings for connecting to Microsoft mail servers (addresses of servers, ports, encryption, authentication). Always define a recovery email address when configuring your Office 365 account.