Previously, I had deleted the backup folder using the Finder (I'm using OS X 10.6.8). It is found in: Macintosh HD/Users/username/Library/Application Support/MobileSync/Backup
1. Go to iTunes > Preferences... > Devices
- Click to: iTunes > Preferences... > Devices panel
- Click the Backup to delete
- Click Delete Backup...
2. Confirm Delete
3. Click OK ...and wait
Having clicked OK, wait. After an age of disk thrashing (this will depend on how many files are in the backup) the Devices Preferences panel closes.


