File extension PST (.PST) information

If Windows is unable to open PST files you may not have the appropriate program installed or may have a registry related error. We strongly recommend that you run a free registry scan.

Appropriate program:

The .PST file extension is associated with Personal Folder Files, and contains all the data in Microsoft email programs, including addresses, e-mail folders, and everything else that Outlook 97, 2K or XP accumulates. Outlook becomes unstable when this file has nearly reached its 2GB limit.. Incorrect associations are the cause of many file extension errors. Scan your system to prevent and identify association errors.

• Performance: To optimize memory and CPU usage for PST files run a free performance scan.
• Stability: Fix PST errors to make your system and applications more stable.
• Drivers: Scan your PC for the outdated drivers which lead to system errors and slowdowns.