So I'm on Windows 7 x64 Home Premium SP1 and I had no problems with my new video card - a Sapphire Pulse RX 5700 XT - when I was using the 19.12.1 drivers. However, upon upgrading to 19.12.2, Windows Desktop Manager began crashing whenever I started a game - whether that game was a Steam game or a Blizzard game. Upgrading again to 19.12.3 did not solve the problem.
I should note that my OS has every critical and important patch applied and most of the optional ones except for anything to do with Remote Desktop. I don't use any anti-virus, but I do use an up-to-date premium version of Malwarebytes Anti-Malware. Windows Firewall is always on and my games and Steam and anything related to playing games that need to connect to the WWW have already been whitelisted.
I have not added any new programs and the only things running when Windows starts are Sound Blaster Omni Control Panel, Malwarebytes and Radeon Software.
Same here, its the driver, its unstable, typical from AMD, they don't test the driver before release.