File extension PST (.PST) information

Click to Run a Free Scan for PST Related Errors

Windows cannot open PST files?

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 for related errors.

Format and name:

Outlook Personal Folder File.

Appropriate program for file extension PST:

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. Scan your system to prevent and identify association errors.

Additional comments:

When outlook becomes unstable Outlook Personal Folder Files need to be shrunk by deleting all the items from all folders. Fortunately Microsoft has a free backup for PST files.

Recommendations for PST file users:

Performance: Run a free performance scan to optimize your memory and CPU usage.
Stability: Stop corrupted file associations destabilizing your PC. Fix file extension PST errors.
Drivers: Scan your PC for outdated drivers that may cause system errors and slowdowns.

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