How do I Repair OST File from corruption and Recover OST data?

Outlook version
Outlook 2007
Email Account
Exchange Server
Hello guys,

I am in big trouble, as my old .ost file shows error when i open that. Last month, there was some issue with my MS Outlook and it breaks connection with Exchange server. I think that is the reason for my OST file corruption.

Please suggest me any tool/software which can resolve my issue ASAP.

Thanks in advance.

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange
The recommended solution for ost corruption is to delete the ost and let outlook rebuild it. If it continually becomes corrupt, examine the applications that are accessing it - virus scanners etc - and change their settings to skip the ost.

If, for some reason, you'd rather try and rescue the data file instead of creating a fresh copy, See for utilities.
Outlook version
Outlook 2010 64 bit
Email Account
SCANOST.EXE (the Integrity check tool) is something which can be used to fix corruption from OST file. It is a built-in utility. Read about it on the Internet.