The .pst file, which is Personal Storage Table, provides back up of the data that you have created in Microsoft Office Outlook. You back up Outlook Emails, Outlook Tasks, Outlook Notes, and Outlook Journal entries, Outlook Contacts, Outlook Appointments, etc. in a .pst files. You can create multiple PST files in one Outlook and .pst file uses single database for all data.
Microsoft Outlook is available in many different versions. Each new version has come up with better and more advanced features. Prior to Outlook 2003, the default size of PST is 2GB and if the .pst file were allowed to grow over 2 GB, the file would become unusable. Microsoft provides PST2GB a tool that can be used to truncate a .pst file that has grown over 2 GB. When the size of the .pst file grows, .pst file gets damaged and Outlook 2000 shows abnormal behavior. Then user needs to repair Outlook 2000 PST file . In the later versions of Outlook .pst files have an increase limit upto 50 GB. However, these PST file can also get corrupt which results in missing Outlook data. Then how a user recover Outlook PST data? Inbox repair tool (Scanpst.exe) is default software, which comes with MS Outlook that can be used to repair .PST file-corruption issues. However, when corruption becomes severe, then inbox repair PST is unable to repair the PST file. Therefore, to repair corrupted PST file effectively you can go with third party utility tool like Remo Repair Outlook (PST) software.
PST file can get corrupted in many scenarios. PST files creates database to store all outlook information on the computer hard drive not on network or servers, in case you store them on network drives, network environment might not be able to support the access to your PST files and your might lose Outlook data. While upgrading your operating system or while upgrading the Microsoft Outlook from older version to newer, your PST file might get corrupted due to registry key corruption. At this scenario, you might get error message saying, “ Outlook.pst is not a personal folder file”. In this case, also you will lose data from PST file. If you are working with Outlook 2002 or an older version, try to limit the size of PST file within 2GB otherwise, you will end up with PST file corruption.
There can be many other reasons leading to PST file corruption at that time repairing PST becomes important. You must go with Email recovery tool like “Remo Repair Outlook (PST)”, which repairs Microsoft Outlook PST file. This software repairs the complete PST file along with the PST settings. During the repair process, all corrupted Email messages, Contacts, Notes, Journals, Shortcuts, Tasks, Calendar items etc will be repaired. The recovered data will be stored in a new PST file, which provides safety to the source PST file. You can download the free demo version of the software from http://remo.fileburst.com/remo-recover-outlook-demo.exe. You can purchase the licensed version of this software and can save the repaired PST file.