damaged

I recently tried using a wireless receiver to connect an Xbox controller to my PC. After the driver installation the screen goes black and when I try to restart my computer it won't boot into Windows 7. The screen goes black after a few seconds and won't give me a chance to boot into safe mode...

Hello, I have a 500gb Touro external hard drive and I originally used it for my mac, only used once. I first set it for the time machine for mac but then I disabled it. I tried formatting it with the mac but it won't let me change the format of the hard drive. The problem is, is that when I want...