A few weeks ago, I got Windows 8.1 PRO on my computer. Since the installation, when I start some games, or some youtube videos, my display drivers ''stop responding'' and then they recover, but the game freezes. I can do stuff out of it, but can't control the game and have to turn it off. Some other times my whole screen freezes, and some vertical grey lines appear. Sometimes it recovers from that, sometimes it freezes my whole screen and I can't do anything, but restart my computer. I've run AMD check, it says my drivers are up to date. My game worked perfectly and I never had a problem before WIN 8.1 PRO installation.
These are my system information
-processor : Intel(R) Pentium(R) CPU G840 @ 2.80GHz 2.80GHz
-RAM 4.00 GB
-System 64 bit
-Graphics AMD Radeon HD 6670
-Drivers AMD Catalyst driver(15.7)
This is the way my screen looks after the drivers crash.