For instructions about how to unhide files and folders, see your operating system documentation. For persistent issues, use FixTechGuide’s automated tools to perform deep diagnostics and security checks. Stay updated, back up regularly, and enjoy uninterrupted productivity in your Outlook workspace. When Outlook is not working, or Outlook keeps crashing pondering upon the cause won’t be of use unless it is a regular issue. I would encourage readers to fix it by trying solve Office 365 mailbox sync delays the solutions in this article. While carrying out the above methods it is advisable to close Outlook beforehand.

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

• If you can't start the Inbox Repair tool automatically or manually, you may try to repair your Office application.
• For persistent issues, use FixTechGuide’s automated tools to perform deep diagnostics and security checks.
• Yes — Outlook will re-sync mailbox data from the server once you relaunch the app, as long as you use an Exchange or Office 365 account.
• The recipient display properties are changed to be consistent with the recovered recipient table.
• The platform validates SMTP, IMAP, and POP3 settings against verified databases to identify version mismatches or broken profiles introduced after system updates.
• In this 2025 guide, we’ll show you how to repair the Outlook OST file and restore seamless email performance without losing important data.
• When Outlook is not working, or Outlook keeps crashing pondering upon the cause won’t be of use unless it is a regular issue.
• If your Outlook suddenly stopped opening after a Windows update, don’t panic.
• While carrying out the above methods it is advisable to close Outlook beforehand.

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

Can I delete my OST file without losing data?

As soon as this operation is complete, other algorithms are run to collect all the orphaned messages and to put them in an Orphans folder. At a higher level, the more visible changes that you see involve folders and messages. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. The built-in Auto-Detect Utility ensures complete privacy—your credentials never leave your device.

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

If it does not work, then unfortunately, you will be unable to recover any additional information. If you could open the file, the following procedure may help you recover additional items from your damaged Personal Folders (.pst) file. If you can't start the Inbox Repair tool automatically or manually, you may try to repair your Office application.

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 FixTechGuide support for Office 365 agent. The recipient display properties are changed to be consistent with the recovered recipient table.