I just recieved a computer I bought about a week ago, yesterday. Last night, while it was on and downloading files, the power board it was plugged into shut off. Now, it's stuck in an endless loop of failing to boot. It keeps asking me to insert the Windows 7 installation disc and restart. I put the disc in but it stays stuck in the loop and I am unable to do anything. I've managed to get it to go to the system repair setup, but it continued to try to repair the problems for over 6 hours and nothing has happened. Any help is appreciated.