The major reason for the OST or the user profile inaccessibility is failed synchronization, unintentional deletion and abrupt system shutdown. No need to panic if you face the above mentioned error. Use OST to PST converter tool to recover email data from corrupted OST files and saves all recovered OST files into PST files.
Read more: http://www.ost2pstexe.com
Edited by kindlejoyes on 11/18/16 04:34 AM.