My dad gave me his computer that he built and he told me to install the drivers on it. He didnt give me a disk or anything, I fially got it all set up and I turned it on and everything was working great, I download everything of my portable hard drive on it and everything seemed to be fine so I didn't download any drivers. The next day I turned it on and I got a black sreen with the message "Reboot and select proper boot device or insert boot media and press any key" I cant get past this screen and I have no idea what drivers are already on it or what needs to be on it. Could someone please help me out with this?