How to Move your Outlook PST Data File to a New Location
1. To move the location of your pst file/s, Outlook needs to be closed.
2. Locate your pst file.
The defaults locations are:3. Cut and paste the pst to it's new location.
Outlook 2007
C:\Users\%username%\AppData\Local\Microsoft\Outlook
Outlook 2010
"Outlook Files in your "Documents" folder.
4. Restart Outlook.
5. You will be asked for the location of the pst-file. Simply browse to the new location.
Note
ensure you select the same pst-file or you’ll corrupt your mail profile
overwriting a pst could lead to file corruption
storing a pst file on a mapped network drive is not advisable and is unsupported by Microsoft
An excellent tool for sharing a pst between computers is Easy2Sync.