You'd have to have a System Image file stored for it to use to reimage your HD:
Backup Complete Computer - Create an Image Backup
Is it discovering an installation to repair in the window where you make those choices, just after you choose Repair My Computer?
Tick the other radio button to go to the Recovery Tools menu and select Startup Repair, run up to 3 separate times with reboots. If it fails, make sure Windows 7 partitition or 100mb System Reserved partition (if you have it) are marked Active, then run Startup Repair again x3.