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How do I repair a corrupted OST file that Outlook won’t open anymore?
by Zane Barrenger - Monday, 13 October 2025, 4:00 AM
 

My Outlook 2019 stopped responding yesterday, and now it gives an error that my OST file is corrupted. I can still see the file in the data folder, but Outlook fails to load it.
I tried ScanPST, but it didn't detect any major issues. Is there any reliable way to repair a corrupted OST file manually? I'd like to avoid recreating the file if possible since it contains several unsynced items.

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Re: How do I repair a corrupted OST file that Outlook won’t open anymore?
by Bailey Gowing - Monday, 13 October 2025, 4:16 AM
 
If Outlook isunable to open yourthe OST file, the guaranteed means of repairing and restoring it is by utilizing a dedicated software, suchas FixVare OST Converter. This software will repair corrupted OST files while preserving complete data integrity. Additionally, itoffers a selective recovery feature thatallows users to recover specific mailbox items as opposedto the entireOST file. Itcanevenrecover severely corrupted OST files painlessly, without technical skills. It works withWindowsand all version of MS Outlook.