iTunes is not showing device backups - can't restore backup
One of the backup folders was causing a problem.

Here is where the backups are stored:

On Windows at %AppData%\Apple Computer\MobileSync\Backup\

On Mac it's at ~/Library/Application Support/MobileSync/Backup

Here's what to do:


Move all the folders in the Backup folder to a different location
Move a single folder back (I did it in reverse chronological order)
Click on Edit > Preferences > Device tab to see if the backups show in the list
Repeat 2 and 3 until you get an empty list - you've found the bad backup folder (or at least a backup that the newer iTunes can't understand)
Delete or move that bad backup


In my case, it was an old iPad 1 iOS5 backup that was causing the problem.

This can also be caused if you have your iTunes storage on a different drive. I just had this issue and when it backed up it stored to the C: drive instead of the F: drive where I have all my iTunes files. I just needed to move the folder from the path above on the C: drive to the same path on the F: drive.