Okay I shut down my desktop at night and whenever I turned it on this morning it automatically installed windows 8.1 which I really didn't want. Whenever it's finished Installing I start my PC and then it loaded up my desktop everything was working fine then when I click on Google Chrome it started to flash red which is my windows selected color. It just kept on blinking and blinking till finally restarted it and currently doing a system refresh. I was wondering if after this I need to reinstall my graphics card and motherboard drivers again? Can anyone tell MD what the problem is ?