|A Windows 7 Repair Disk can be used to perform a Start Up Repair, A System Restore from outside of Windows (it uses your saved restore points but uses the restore program on the CD/DVD), and allows you to reload a disk image if you made one from the Windows Back up section. The Windows 7 Repair Disk should have been made by you when the machine was new. If you did not make one, you can make one from any other Windows 7 machine as long as both are 32bit or 64bit and use that. This can be very useful when your operating system cannot start or when your built in System Restore cannot work for some reason.|
If these do not help, you will (as mentioned) rely on the manufacturer support and possibly even getting a recovery disk set from them to do your factory restore from.
You have to be a little bit crazy to keep you from going insane.