How do I Repair OST File - Version 3.6 Install Repair OST to PST tool when you want to solve issues like how do I repair OST files or how do I recapture OST file. OST file corrupt due to following reasons like: Database corruption, Virus Attack, Software and Hardware failure, CRC error, During updating of Older Server to New Server, Loss of Network connection. OST file does not synchronize with Exchange Server in that condition and some error generate in OST file like How do I move OST to PST. You need to just install out OST Repair tool that easily open OST file to PST file in Offline mode. Download free demo version to know how do I resolve corrupt OST database with all email properties such as to, subject, date, time, CC and BCC. Purchase full version of our software Repair OST File just at $99.