So I was getting the Windows error recovery screen. I downloaded the Vista Repair 64 bit disk and inserted it into my computer. It took me to the repair section and it seemed to be working fine until my computer re-booted and now nothing. All I get is a black screen with a cursor in the middle. I tried turning the computer off and on again and now it doesn't even want to boot. Just a black screen with a cursor. What is my next step?