My son's laptop is stuck in the system repair screen and just stays there. Here's the background. His laptop was dog slow when he came home from college. The only way to boot it was in safe mode. I suspected a virus and ran multiple AV checks recommended on the Windows 7 support forum. No virus was found. Checkdisk and sfc/ scannow from cmd also failed to complete. Based on additional Forum info, I then tried to repair using the restore disks I made when I bought the Dell laptop. It worked fine until starting the repair and then hung at 1%. Eventually I turned off the power. Next I tried doing a custom Win 7 installation from a new disk (a fresh copy of Windows 7). It still tries to repair from the fresh Windows DVD and hangs on the system repair screen. I have powered off and tried to get back to safe mode unsuccessfully. How do I get out of this loop? BTW, it has not blue-screened at all. Thank you.