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There may be items in the backup file that you might be able to recover that the Inbox Repair tool couldn't. Open the OST file as per the location provided in the table. As you open it across the File Explorer, lead to the "View" menu from the top. There, turn Outlook profile repair and recovery steps on the option of "File Name Extensions" to display extensions.

Repair Outlook Data Files (.pst and .ost)

An Outlook data files are designed to safely handle max space 50GB in Outlook 2010 to 2019 and Office 365 by default. You can try syncing outlook file 6 to 12 months or through archiving email using retention policy, could be a better way to protect the .ost size from corrupt. As it is converted, you can easily view the contents of the data file.

Outlook - OST file recurring corruption

"Excellent program. Ive used it twice to convert .EML files to .MSG. Thank you." fix Outlook after Windows update issues If anyone can get an answer from microsoft on this issue I’d appreciate it. Any MS techs can contact me if they need further information or analysis. I’ve created a ticket today with Rackspace to see if their other customers are having this issue but I’m not hopeful on hearing back from them.

When Outlook is running and is halted in such a way, it can damage the OST file.Convert your OST to PST for optimal results if rebuilding the OST file does not do the trick.You can try syncing outlook file 6 to 12 months or through archiving email using retention policy, could be a better way to protect the .ost size from corrupt.As you said Outlook E3 licenses should support at least 100GB of data & there’s no excuse why it can’t support OSTs above 50GB when they offer twice that space.The Inbox Repair tool creates a backup file with the same name as the original, but with a .bak extension, and saves it in the same folder.The file would get inaccessible and won't update in any case.We will help our readers decide the best way to rebuild OST for functioning through Outlook.You can use the Inbox Repair tool (SCANPST.EXE) to diagnose and repair errors in your Outlook data file.

What are the major Reasons of OST Corruption and how to Fix it

The question mentioned above is thus definite in such a case. It is surely possible to rebuild the OST files at any instant. Although the procedure may differ to some extent, it can be executed. This article will mention the process to rebuild the OST file in detail. Perfectly repair and recover corrupted Outlook PST & OST files.

Method 4: Use OST Repair Tool

Only way to restore Outlook 2016 (Windows) functionality was to create a new profile; this worked, and a new OST file was created. On the next screen, access the "Find File" option if you are unaware Repair Corrupted OST In Outlook of the location. If you know the location, click on the "Add File" tab and browse it.