Scanpst.exe utility is the free utility suggested by Microsoft Outlook to repair OST file without any hurdle. But if OST file is majorly corrupted then you need to choose OST Recovery software to repair and recover data of OST file. Apart from repairing OST file software allows you to convert OST file to PST, EML and MSG format without harming original mail attributes.
See more; http://www.solutions.microsoftostconverter.com/ost-to-pst-converter/
Edited by chhavi sehrawat on 05/11/17 05:33 AM.