The .pst file is a hidden file - turn on searching hidden files/folders in Windows search
The best backup is to simply copy your .pst file (with Outlook completely closed) to a location of your choice, such as a USB or external drive.
--
Milly Staples [MVP - Outlook]
Post all replies to the group to keep the discussion intact.
After furious head scratching, Home User asked:
| How do I back up my Outlook data? I can't find the .pst file on my
| c:drive.