3 days ago I decided to update my gpu driver and downloaded new 16.6.1 driver with the help of catalyst app, unfortunately, I'm not 100% sure about the version of driver which I used before installing new one, but I think it was 15.12 or 15.11. I started to install 16.6.1 and during analyzing process it gave me an error, something like "Can't find the driver. Contact AMD", at same time another error popped out from windows saying that the driver has no digital signature. I googled this problem and found that solution was to make windows stop checking digital signatures, I tried to do it, but the driver installation still gave me "Can't find the driver" error. I tried to download and install the driver manually, still same error. After that I downloaded AMD Driver Autodetect tool out of desperation and it proceeded to install 16.3.2 driver. It looked like everything is fine, installation gave me no errors, but after restarting my pc, instead of loading my windows 7 it loaded windows recovery environment. I spent whole day trying to delete new gpu driver which was undoubtedly the source of this problem, but couldn't even get into running safe mode. Having no hope of recovering my os left, I made a clean install of windows 10, new 16.6.1 driver was installed without an error and I thought everything was over, but after playing for an hour my pc froze with black screen and stopped responding to any commands. I had to restart it but during start up process and loading screens there were different graphic artifacts, mostly horizontal and vertical stripes of different colour. I thought my gpu started dying but after I uninstalled the driver the artifacts were gone. After that I tried to install 16.6.2 and 16.5.3 drivers and every time it's the same: everything seems to be working fine, but after I start up a game (mostly tested it with battlefield 4, but same problem stays with other games like world of warships for example) and play it for 10 minutes or so, it freezes with black or light blue or some other colour screen, after restart pc starts to experience different artifacts, sometimes freezing on start not letting me even use windows, so I have to restart pc several times, until it loads properly. Another interesting thing is that all artifacts usualy disappear on desktop screen, although couple of times desktop had it's own artifacts. But after uninstalling the driver everything disappears and there are no freezes (for some reason driver can't be uninstalled during safe mode).
I would appreciate any help from anyone.
Motherboard - Asus P6T
CPU - Core i7 960
RAM - 12GB HyperX
Storage - OCZ Vertex 4 128GB
Storage - WDC WD20EARS-00S8B1 2TB
GPU - Sapphire Radeon HD 7950 3GB edition
OS - Windows 10 Home 64 bit
PS: Found a topic with similar problems: https://community.amd.com/thread/202103?q=new%20driver%20freezes
I'll try revert back to 15.11.1 and see if it will work.