Played Warhammer Chaosbane for 20+ hours. After I exited the game there were some discolored (noisy) horizontal lines on the screen, and a few vertical ones. I restarted the computer but it didn't finish loading Windows (black screen after Windows logo). Needed to hard reset the PC.
Uninstalling the display driver (in Safe Mode) solved the problem. But each time I reinstall it (with the latest version, June 3, 2019) the problem returns--can't get into Windows unless I uninstall/disable the driver.
Used DDU to uninstall the AMD drivers and Windows 7 had been updated.
Tried reinstalling the original drivers that came with the GPU, achieved a little success. Windows finished loading but the horizontal lines were still there, and then black screen after a minute or two. Hard reset.
Removed the GPU to inspect if it had damaged parts, there were none. Carefully reseated it. No go.
Short of reinstalling Windows 7, what else can I do to try to fix this?