If your account is locked due to multiple unsuccessful login attempts, wait for the lockout period to end. It can vary from 1 to 30 minutes, depending on the number rebuild Outlook data file quickly of failed attempts you have performed. Once the waiting period is over, try logging in again with the right credentials. In these scenarios, you’ll need more in-depth knowledge of Office 365 licensing, Azure Active Directory (Azure AD) configurations, or advanced policy settings.

How do I fix the ‘Product Activation Failed’ error in Microsoft 365?

Additionally, ensure you’ve installed all available updates, as performance improvements are often included in patches. Regularly cleaning up your hard drive or upgrading hardware like RAM can also enhance performance. If you’ve tried all these steps and still can’t resolve the sign-in or activation errors, you may need more advanced troubleshooting. Completing the above steps resolves a large majority of rebuild Outlook data file quickly typical sign-in and activation problems.

Recover your account

Use the uninstall troubleshooter to uninstall Microsoft 365, Office 2021, Office 2019, or Office 2016 from your Windows PC. Find solutions to common problems or get help from a support agent.

3 Step 3: Verify Network Connectivity and Firewall Settings

• Microsoft 365 is a vital tool for many businesses, and login issues can significantly disrupt day-to-day operations.
• If you are using an outdated web browser or Office app, it can create compatibility issues, which eventually lead to Microsoft 365 sign-in problems.
• Sometimes, an expired license or outdated credentials are the culprit.
• If we detect a problem with your account, we'll tell you what you need to do to solve the problem.
• Close unused tabs, background processes, or applications to free up system resources.
• Online guides from Microsoft provide extra steps to speed up slow applications.
• Perform a quick repair via "Programs and Features" to optimize performance.

Regardless of the root cause, understanding the core steps to troubleshoot and resolve these issues is essential for an efficient, well-run IT environment. A slow installation is often caused by network problems or background tasks monopolizing bandwidth. Close other programs or downloads running on your device to free up resources. If you’re still stuck, reboot your computer and try the installation again, preferably during off-peak internet hours. If network connectivity is solid and you’ve ruled out firewall or proxy blocks, clearing cached credentials and repairing the Office installation are the next logical steps. After running the tool, restart your system to clear any residual files.

Microsoft 365 Troubleshooting – Quick Fixes for Common Problems

If you encounter this error – Sorry, we are having temporary server issues, then chances are that the issue lies at Microsoft’s end. Alternatively, you can use the browser’s incognito mode or private mode to check if the issue persists. If you would like to ask me another question in the future, you can add me as a favorite Expert. You'll have the option to do that on your \"My Questions\" page if you choose to rate our interaction or you can request me by name if you wish. You'll have the option to do that on your "My Outlook Stuck on Synchronizing Folders Questions" page if you choose to rate our interaction or you can request me by name if you wish.