If you are a regular user who depends heavily on the inbox application to perform daily operations, then Outlook not working or opening would be a big punch in the gut. Yes ✅ You can connect with our experts on WhatsApp for quick remote support and step-by-step troubleshooting guidance. solve Office 365 mailbox sync delays 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 Inbox Repair tool is automatically installed with all English-language Microsoft Outlook installation options depending on your operating system.

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

• Many users encounter startup freezes, profile loading loops, and crashes following major Windows patches or Office updates.
• The last option in this list is to repair the Outlook data file.
• Thousands of users face corrupted OST files, sync errors, and missing mailbox data after system updates or unexpected shutdowns.
• This command deletes the custom folder views, restoring default configurations.
• For instructions about how to unhide files and folders, see your operating system documentation.
• Yes ✅ You can connect with our experts on WhatsApp for quick remote support and step-by-step troubleshooting guidance.
• If your Outlook OST file isn’t syncing properly with Office 365, you’re not alone.
• It’s harmless and resolves 30% of stuck startup issues according to Microsoft community reports.

Last but not least, you can try to repair Outlook PST files using the ScanPST tool or using a specialized Outlook repair tool. If you send/receive error 0x800CCC0E fix cannot import the Newname.pst file into Outlook, unfortunately you have lost all the information that is not in the Lost and Found folder. FixTechGuide’s free email diagnostic tools automate error detection by scanning your configuration files, registry entries, and mail protocols. The platform validates SMTP, IMAP, and POP3 settings against verified databases to identify version mismatches or broken profiles introduced after system updates. A corrupted OST file can pause your business communication, but with these repair steps you can restore your Outlook in minutes.

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

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 Exchange connectivity diagnostic agent. The recipient display properties are changed to be consistent with the recovered recipient table.