When you use MS Outlook over a long time period, you have to come across various hardware and software issues like as sudden power cutting, hardware failure, virus or other malicious attacks. These could result in little corruption in the OST files. Damaged offline storage table (OST) files may give rise to synchronization problems and even make the OST files inaccessible. It is best to repair corrupted OST files before the damage becomes permanent. The OST Integrity Check Tool provided by Microsoft, can be used to solve troubles arises because of damaged OST files. You may ask How to use integrity check tool to repair ost. Then, you should know that it is freeware tool offered by Microsoft only for repairing OST files. You can download it from Microsoft download center for free. To start this tool, you should exit MS outlook and follow the following steps ?

Click Start > All Programs > Microsoft Office > Microsoft Office Tools > Outlook OST Integrity Check Tool.

Click the Scan all folders option to scan OST file with all folders.

Click the Begin Scan button

It performs a very efficient analysis of the OST files and then quickly repair the few damaged messages present in the OST file to resolve synchronization and other issues. While scanning the folder, a log file of is created in the ?Deleted Items? folder that can be viewed through MS Outlook. However, this tool is free from Microsoft to repair corrupt OST file but it is not sure whether the file will be repaired completely or not. Thus, if this tool is unable to repair corrupt OST file, then you have to convert the OST to PST and then you can access your file with MS Outlook. For more information please visit www.osttopsttool.net