In Microsoft Outlook, all the information like emails, contacts, notes, journals, calendars are stored within the PST file. However, this PST file is highly vulnerable to corruption. Some of the reason of PST file corruption is virus attack, abrupt power supply, unexpected system shutdown, and software and hardware failure. PST file also gets corrupted when it exceeds 2 GB size limit. Corruption to PST file makes data inaccessible. However, Outlook comes with inbuilt inbox repair tool to repair corrupt PST file. But this tool is not 100% efficient. In this case, you can download PST repair tool to repair corrupt PST file. With the PST repair download, you can easily repair corrupted or damaged PST file an also recover your lost data from PST file. This tool is very easy to use and is compatible with Window NT, 2000, 2003, XP, Vista and Windows 7.