Hey everyone. I've had issues with my PC booting up for a while now but usually after a few restarts it would work right. A few days ago it stopped booting. It would get through the system startup but would stop at a black screen when it should be loading the OS. I reinstalled the OS and it worked on initial startup. But once the PC was restarted the problem came back. I tried changing out the hard drive but the same thing happened. I then used a friends computer to download an ISO of windows 8 developer trial. It installed fine but upon restart did the same thing. Although windows 8 said something about not being able to find some windows start file. I'm not sure how to diagnose the problem further or fix it. I'd rather not spend money buying things if they are not necessary. Any help would be greatly appreciated.