Outlook pst file repair tool

Yesterday, I was doing some mailbox cleaning after a week away from the office taking care of my family (that now counts one more little girl), and I suddenly got unable to move e-mail from the inbox into folders (a message was telling me the message was already gone even though I was staring at it). Restarting Outlook or even rebooting didn't help. Despite the sleep deprivation, I immediately suspected .pst or .ost file corruption.

One thing I learned from previous calls to support about Outlook is that there is a little known utility that ships with Office and that restores pst and ost file corruption. Scandisk for .pst if you want. You can find it in Program Files\Microsoft Office\Office12 and it's named "scanpst.exe". The icon is a broken enveloppe.

The utility only took a few minutes to scan my pst and ost files and restore them, and shazam! I can now move my e-mail around normally.

Oh, and by the way, if you don't know where your .pst and .ost files are physically stored, it's very easy to find if you know where to look. In Outlook, right-click on the personal folder icon, choose "Properties" (should be the last item in the menu), then click the "advanced..." button and there it is:

Hope this helps.


  • Thank for this, scanpst did the job for my OST this morning

  • Just an FYI, thank you for posting the screenshot of your file location. We had a problem here where Outlook wouldn't even open, so we couldn't right click on anything to see where the Personal Folders were stored. I found your site after a few searches and was happy to see the path highlighted so we had an idea. Thank you

  • There are commercial applications that will not only fix corrupt PST files but also undelete items and reduce the file size, in my case the problem was that my PST was over 2 GB in size. A known problem (to Microsoft). I've added the URL of the one that I got, outlookfix. It seemed to work the best out of the ones that I tried.

  • But unfortunately if the PST size is huge.. this tool doesnot do anything :(. My PST have moved over 1GB and now i am totally lost. I cannot do anything with this PST. As soon as i touch this PST, my machine hangs and i have to hard reboot the machine :(. Totally in a bad state

  • @Raghavendra: you should contact support.

  • beware that if your PST file is over 2GB, this may not work.

  • I had that problem with the huge PST file. As someone else said earlier, I used OutlookFix to repair it. It allows you to split the pst file in several smaller files. It worked for me. Check it out!

  • Try to open a pst in question with Outlook 2007. I was just able to open a 4GB .pst file that no other program was able to fix.

  • yesterday when i go to open my mails from microsoft outlook express it giving error *.pst file is not personal pst file.

  • I cannot open outlook and even with the bit of file given I cannot enter it right info to get the location of the personal files. I have Outlook 2007 and get error that says: a data file did not close properly the last time it was used and is being checked for problems.

    And it never opens or works.

    I can get to the repair tool but can't find right file to enter.

    Any help?

  • @mike: maybe do a global search on your whole hard drive for *.pst files?

  • this message out this file is not a personal folder and cant open the pst file

  • Same question as Mike above. I can find the repair tool, but the browse option doesn't get me to the file. I can find my user file, but there is no AppData folder to browse.

  • Nevermind. I'm an idiot.

  • I am not able to find scanpst.exe
    can you please help me

  • I tried copying (importing) old backup files (pst) from another computer using WinXP to the Outlook folder on a machine using Vista with Outlook XP. Outlook didn't recognize (incompatible) so I removed them. Now Outlook doesn't open and I know I didn't erase the existing Outlook.pst file (yet, it is gone now). What the..............????
    Please HELP

  • @screwed: you should contact support.

  • You can split a pst file or if you donot want to split your pst file into many files, you can compact your pst file which can reduce the size of your pst file

Comments have been disabled for this content.