UE 5 Crash D3D Device lost after Startup

I was having same issues. Tried everything. Then I uninstalled all the programs that came with my motherboard. Any type of app suite that monitors or updates programs automatically I got rid of. Including any gpu boost software. I also updated my bios to newest one. UE5 is running smooth now. I also did a clean instal of drivers. I also disabled all overlay programs.

Ryzen Threadripper 3970x RTX 3090 FTW3 Gigabyte TRX40 Aorus Extreme 11