07-20-2012 02:46 AM
Welcome To Lenovo Community
Open R&R and click "Launch advanced Rescue & Recovery"
Click "View all backups" under "Back up your system."
Select the "Advanced" pull-down menu and select the check box next to the backups that you wish to remove.
Click "Delete" to remove the backups.
Note : Delete the most recent backup first , and do it one by one
Hope This Helps