My computer crashed yesterday randomly after a update, so I restarted the computer and when I got to the login screen, I noticed the resolution had changed, which usually indicates that something driver-wise had stopped working. So I downloaded the latest drivers (285.58) and installed it. After reboot, nothing had changed. So I did a clean install several times, but with no difference.
I also noticed that my task bar freezes after login and you have to kill the explorer process and restart for it to work, and even then it can freeze again. Also svchost.exe seems to crash after login and VS2010 is giving me a debug option.
After a while of reinstalling, rolling back I decided to use system restore. I restored the system to a month earlier, just in-case the problem never arised before that. Now the graphics drivers work now, however svchost.exe still crashes and task bar still freezes on login.
After I tried to start in safe mode, except the boot screen was broken.
Though, even though the option text was broken, I could still boot into safe mode. However the same problems still occurred in safe mode.
I would of reinstalled, however I cant because it isn't my computer and it doesn't have a DVD/CD reader and I never could get flash drive installations to work. So I basically have to fix the problems.
Edit: I installed AMD Dual Core Optimizer before that because UT3 and Borderlands was crashing and told me to install it, and everything worked fine before that was installed.
Edit 2: I tried again to play a OpenGL game, it crashed, however a message came up saying "Too many errors occurred indicating a serious problem from which the driver cannot recover. The application must close." and linked me to this