How to repair personal folder file (.pst) - O…
https://learn.microsoft.com/en-us/outlook/troubleshoot/data-files/how-to-repair-personal-folder-file
Follow the given steps to repair .pst files by using Inbox Repair tool (SCANPST.exe): Exit Outlook and start the Inbox Repair tool. Automatically start the Inbox Repair tool. Select Open or Run in the File Download dialog box, and follow the steps in the easy fix wizard. Locate SCANPST.EXE. Run SCANPST.exe. Launch 'Stellar Repair for Outlook' tool. 'Browse' or 'Find' the PST file you wish to repair. Click 'Repair.'
Exit Outlook and start the Inbox Repair tool.
Automatically start the Inbox Repair tool.
Select Open or Run in the File Download dialog box, and follow the steps in the easy fix wizard.
Locate SCANPST.EXE.
Run SCANPST.exe.
Launch 'Stellar Repair for Outlook' tool.
'Browse' or 'Find' the PST file you wish to repair.
Click 'Repair.'
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