One day I was playing GTA IV and it started running slow. So I decided to update my drivers and that didn't help. Usually when that happens I just take out my card and clean it. But this time it didn't work. Even that "Windows Experience Index" had changed. My graphics rating used to be 6.9 now it's 5.1.
The only graphics hardware on my computer is my GTX 560 TI as the display adapter, no onboard graphics detected. I made sure that everything was plugged in right. I checked GPU-Z as well and it detected a GTX 560 TI as normal. So what could have happened? I updated all my drivers, cleaned out my GPU and uninstalled a heck of a lot of programs and my games still run slow. I defragged all my steam games.
i5-2500K @ 4.5ghz
GTX 560 TI
Windows 7 64-Bit
Nope, CPU Max is 47c. GPU is fine as well, runs games at 31c
So yesterday games were working fine, booted it up today. Games are running slow again, and there isn't a restore point to yesterday. I haven't installed anything yesterday either...