I have Outlook version 2007. But the problem has come up on other versions. Most notably version 2003.
Microsoft has a .pst file backup, I'm not sure what to call it, widget that adds the Backup selection to the File sub menu option drop down.
Now my problem - when I first set it up I set the backup place be a USB drive that was assigned the drive letter E:\. But I changed the place to be a folder on a server volume - H:\folder. But up to now the backup program still wants an E: drive to be there. Now it won't even backup at all. How do I remove this piece and reinstall.