Is Scanost.exe effective to resolve OST file issues?

Posted on January 23, 2015
Under OST to PST | Comments Off on Is Scanost.exe effective to resolve OST file issues?

When you use a Microsoft Exchange Server account, your email messages, calendar, and other items are delivered to and saved on the server. You can configure Outlook to keep a local copy of your items on your computer named as offline Outlook Data File (.ost). This OST file allows you to work offline when a connection between Exchange server and Outlook gets disrupted due to any reason.

The .ost file having offline worked data gets synchronized with the Exchange server database when connection is re-established. In fact, Offline folders are replicas of the folders found in your Exchange server mailbox. A bad thing about these OST files is that they are very sensitive to any improper system functioning. A long duration connection disruption between Exchange and Outlook place OST file in an orphaned mode. Corrupted or orphaned OST files cannot be accessed properly. As, these OST files contain essential email data so it is very significant to extract OST items as soon as possible. There is also a great risk of permanent data lose from OST files.

In order to fix OST file issues, Microsoft has given OST Integrity Check Tool (scanost.exe). It can be used to diagnose and repair OST synchronization issues. OST Integrity Check Tool (scanost.exe) scans your .ost file and your mailbox on an Exchange server, comparing items and folders in each mailbox. It attempts to reunite synchronization differences between your mailbox on the Exchange server and your local copy of the .ost file. But, it doesn’t change your mailbox on the Exchange server in any way. On completion of process, it records any differences in a scan log so that you can see what inconsistencies it found and resolved.

If you have problems in opening your .ost file, you can use the Inbox Repair tool (Scanpst.exe) to diagnose and repair errors in your .ost file. It does not interact with your mailbox on the Exchange server in any way. In many cases, when OST files get severely corrupted this utility fails to resolve your OST issues. While facing such severe conditions, you need to look for third party software. OST2PST is the best software that can recover your complete OST and convert it into Outlook PST format for easy accessibility. By using OST2PST conversion utility, you can easily convert all email messages, folders, posts, meeting requests, journals etc. in Outlook PST file format. The utility performs a complete and thorough scanning of the inaccessible OST file and then place all the emails along with their attachment. It is available with free evaluation version. It supports all the versions of Microsoft Exchange Server, MS Outlook and Outlook Express.


If you are facing problems due to inaccessibility of Outlook OST files, don’t get anxious because OST2PST tool is an easy to use and effective utility that helps you to extract all the email items of OST files and convert them in PST file format.

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