I have windows 7 installed on a PC I built a little over a year ago. I recently upgraded to the windows 8 consumer preview, but I didn't like it so I'm trying to switch back. When I install windows it works fine, I can turn my computer off and on as many times as I want and it will be fine, but if I install any video card drivers or any of the updates that windows tells me to install, the next time it boots up I either get the windows splash screen or a black screen right after it says, "welcome to windows", or whatever it says. I have tried installing only my video card driver, I have tried installing only one of the recommended updates, but no matter what I install it doesn't work the next time it boots, so this isn't a problem with one specific driver. The only thing I have changed since I had windows 7 installed before is that I got a new SSD, but I'm still using my old drive as well. I have tried installing on the SSD while the other drive is unplugged and I have tried to install windows on my original HD while my solid state drive is unplugged. I have tried installing on both, nothing works. I have formatted both several times. I have also tried installing both 32 and 64 bit versions, both to the same effect. What else can I do? I need to install my video card driver at the very least or I can't play games, which is the whole reason I built a PC.