From: bipsarawat on
Its indeed true that you cannot download scanpst.exe anywhere, it is by default installed at the time of installing Outlook. But, you only have to use that in the correct manner and most important thing is that always keep a backup of the outlook PST before carrying out any repair task so that if it does not work as expected you could go for PST repair software or so, in order to get access to your data.

Click scanpst.exe twice for execution
Browse and select the outlook data file
Then start the scanning process
On its completion, click on repair hope that it works
.
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