I have this same issue, Event logs do not show anything. I have a clean installation, several times. I have a Nvidia GTX 3060. This GUP is a screamer. No issues with resolution. I have 3 Samsung 32 inch monitors and the PC is hard wired to my Samsung 8th generation 65 inch TV. When my PC freezes its a hard freeze I cant use the keyboard. the only option is a hard reboot. I am going to go back to Windows 10 Pro because Windows 11 Pro sucks donkey balls.