Error: "Personal folder not closed properly"

I recently upgraded to Office 2007.  Every time I open Outlook now, I get the error message "The datafile 'Personal Folders' was not closed properly."  Then, I get a popup below that says "A datafile did not close properly the last time it was used and is being checked for problems."  Then it warns me that performance may be impacted while it is checked.  What is going on and what is the problem?  How can I fix this once and for all.  (I also just upgraded to Norton 360 so perhaps the problem is there?)

Question Info

Last updated December 18, 2019 Views 28,458 Applies to:

Hi Jowrobs,

Check whether SP2 for Office 2007 is installed or not.

Click on Help > About Microsoft Office Outlook to get the service pack information.
If not installed go to the link below to install the same.

If issue still remains unresolved scan and repair the Outlook data file.

Follow the steps mentioned below to unhide Files and Folders.

1. Click Start, and then click My Computer.
2. Click on the Tools menu -> click Folder and Search Options.
3. On the View tab, click Show hidden files and folders, and then click OK.
4. Remove the checkmark from the checkbox labeled Hide extensions for known file types.
5. Press the Apply button and then the OK button and close.
Close the window  
Follow the steps mentioned in the website below to scan and repair the Outlook data file.

Aravind, Microsoft Answers Support Engineer.
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