I don't know what I did but two hours ago I was able to run the witcher 3 on at around 40-60 fps with a GTX 960 and an AMD FX-670K overclocked to 4.3 & sometimes to 4.5 GHz both games are now running TERRIBLE. The witcher 3 running at around 30 FPS, BF4 running at around 10-20. I didn't install anything bad. I have an antimalware and antivirus software, I ran both and no virus' or malware were found. I also did a full CC cleaner. Nothing helped. Any ideas?