Outlook PST corruption is frequently encountered due to issues like, unexpected shutdown, not closing the Outlook properly, third-party interruptions, network issues and 2 GB file size limitation. Such events usually cause PST objects to become inaccessible and also introduce abrupt behavior symptoms in Outlook. Microsoft Outlook with corrupted PST is slow at use or might even fail to open. To fix such issues, it is suggested to immediately restore the file from backup. If in case, it is unavailable, one should try running Inbox Repair Tool. If this too fails, Outlook PST Repair tools can help regaining your work.To exemplify, you can consider the following scenario:

1-You use a Windows based system and observe file system corruption symptoms
2-To fix the errors, you run chkdsk and it goes correctly
3-You open Outlook, but it fails with an error that it could not open default email folders
4-When you examine the PST file, it appears to be of size 0 KB


PST file is corrupted. This could occur because of unsuccessful chkdsk attempts, like reindexing and reallocating.


To repair a corrupted Outlook PST file, Microsoft provides a built-in tool, called Inbox Repair Tool. However, you should first attempt to restore from backup, if is present and valid.

You can locate the tool at one of the following locations:

:\Program Files\Common Files\System\MSMAPI\1033

:\Program Files\Common Files\System\Mapi\1033\

:\Program Files\Microsoft Office\Office12 (for Outlook 2007)

Alternatively, you can use Windows Search or Find option. Follow these steps to run the tool:

1-Backup the PST file to prevent any post-crash consequences
2-Locate the tool at the location mentioned above
3-Open the tool by double-clicking the file
4-Type the PST file name and specify its path or you can browse to it
5-Click Start to begin the repair process
6-Exit the tool after it finishes

Try to open the PST file. If it opens successfully, the file is repaired or else you need to opt for third-party solutions, called PST Repair software.

Outlook PST Repair utilities are graphically rich tools with advanced technology to repair and restore the damaged Outlook .pst file. They perform effective PST recovery while providing you a pleasing user experience.

Stellar Phoenix Outlook PST Repair is a comprehensive solution for repairing the damaged Outlook .pst file. The tool serves as advanced PST Repair for files created with Outlook 2007, 2003, 2002 and 2000. It can restore all PST objects, which include emails, notes, journals, tasks and calendar events.