Microsoft Outlook 2010 error..."Outlook.pst" is not an Outlook data file (.pst)


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Hello Experts,
Came into work this morning and attempted to open my email (Outlook 2010). Got an error message that 'Outlook.pst is not an Oulook data file'. Following a suggestion, I deleted the profiles key in the registry. Upon opening Outlook it made me create a new account. I did so and it works fine, but all my prior email/contacts/calendar are in the other data file that won't open. I tried adding it to my list of data files but am still getting the error message. My new Outlook.pst file is under .../My Documents whereas my old file was under .../Local Settings/Application Data/Microsoft/Outlook. How can I get my data back?



Hi dear

It look like your PST file is corrupt somehow. Well do not panic you can repair your PST file easily.
  • Go for SCANPST.exe in Root folder inside Microsoft Office in your C:/Program Files/ folder
  • remember to take backup of your PST file before executing the SCANPST.exe command.
It will repair your PST file , now if the issue remains then instead of opening your PST file in Outlook directly ,
  • Go To File
  • Open & Export option
  • click on Open Outlook Data file
  • it will open up the location where you Outlook data file is situated.
  • Open the the data file(.pst)
Hope your issue will get resolved.