This is the same as the "Windows Won't boot even from repair disk" thread, but I am desperate! I just spent $100 I don't have for a new Windows DVD. It's the same story: "Windows is loading files"..."Starting Windows"...then a blank screen with a mouse cursor in the middle. Nothing happens then but the HD activity light on steadily--with an occasional blink. After a couple of hours the hard drive light goes dark. The mouse cursor moves, but the screen is still blank. Windows won't boot, install or do anything else. This computer ran Windows 7 just fine before. It still runs Ubuntu. (But I don't like Ubuntu.) I've disconnected everything but the mouse and keyboard and monitor. I've disconnected the hard drives one at a time, I even tried getting a new DVD writer. Nothing works. Does anybody have a useful suggestion? I've been trying to solve this for weeks now.