This command deletes the custom folder views, restoring default configurations. It’s harmless and resolves 30% of stuck startup issues according to Microsoft community reports. Microsoft provides a built-in tool called SCANPST.EXE to scan and repair minor OST corruption. If a Microsoft 365 application such as Word or Excel isn't working correctly, sometimes restarting it will fix the Fix Outlook and Office 365 Errors 2025 problem. It is located in the folder of your original Personal Folders (.pst) file.

Step 3 - Recover repaired items to a new .pst file

• Then, you can move the recovered items to your new Personal Folders (.pst) file.
• Repairing Outlook’s .OST and .PST files often restores full mailbox synchronization and prevents email loss.
• To start the Inbox Repair tool manually, locate one of the folders by using Microsoft Windows Explorer, and then double-click the Scanpst.exe file.
• Optionally, you can try to recover additional repaired items from the backup personal folder.
• Therefore, structures such as BTrees and reference counts, are checked and repaired as necessary.
• Safe Mode allows you to start Outlook with all extensions temporarily disabled.

Run a full scan through the dashboard and receive a detailed report on configuration health, certificate status, and network connectivity. This solution FixTechGuide Office 365 troubleshooting prevents display rendering errors that occur after driver or DirectX updates.

Can I delete my OST file without losing data?

If all the above methods were unsuccessful, you could take a closer look at the Outlook data file instead. If that does not work you can try using SFWare PST repair software. The last option in this list is to repair the Outlook data file.

Easily Repair Outlook 365 and Outlook 2021, 2019, 2016, 2013, 2010, 2007, & Other Versions

Fortunately, most of these errors stem from configuration conflicts, corrupted data files, or outdated components that can be fixed with a few targeted steps. If your Outlook suddenly stopped opening after a Windows update, don’t panic. Most startup failures arise from minor configuration mismatches or outdated components. Following the above steps—from safe mode diagnostics to repairing data files—will restore functionality in most cases. Repairing Outlook’s .OST and .PST files often restores full mailbox synchronization and prevents email loss.

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

If this method works, try disabling your add-ins and any recent customizations that you may have made in Outlook to permanently fix the issue. If the issue continues to trouble you, then you have to continue with the solutions mentioned below. Find solutions to common problems or get help from a support Office 365 sync problems and login fixes agent. The recipient display properties are changed to be consistent with the recovered recipient table.