Abrupt termination of Outlook: If Outlook application terminates suddenly, then OST file may corrupt or become inaccessible.Power Failure: Sudden power failure when the users are working with the OST file could result in OST file corruption.Hence, it is advised to check for a proper network connection. Synchronization issue: The synchronization between OST file and Exchange server may also lead you to many OST errors.Bad sectors on the hard drive: Presence of bad sectors on the hard drive where your OST files are stored could lead you to inaccessibility of OST files.There are many possible reasons that will make OST (Offline storage table) file corrupted. Primary reasons for getting “OST file cannot be opened” error:
One of the most of the frequently asked queries is how to solve “OST file cannot be opened” error in MS Outlook 2016? Although, there is a long list of errors related to OST file. Most of the forums are filled with a query where Outlook users are looking for a solution to fix their OST related issues. Offline OST files can be used as a backup file to restore the data if Exchange Server becomes inaccessible.Ĭommon OST file errors faced by MS Outlook users:.Users can access their essential data in the case of Exchange Server crash or Exchange Server downtime.Users can even work offline without having Internet connections.OST files are accessible even in the case of limited or less Internet connectivity.Here we are going to discuss all the possible reasons and their solutions to resolve “OST file cannot be opened” error using both manual and automated process. If you are also dealing with the same issue, do not worry. Sometimes, MS Outlook users come across an error called “OST file cannot be opened” which means MS Outlook users cannot access the OST file in Outlook 2016 and all the earlier versions. An OST (Offline storage table) file is an exact replica of Exchange Server mailboxes which helps users to work in offline mode.