Game crashing issue

The game crash almost during every match,often lose rendering device,my system is R5 3600 and RTX2080SUPER,after update 477.11 driver it happens,I heard that League of Legends also crash on this driver version,so I reboot to safe mode and uninstall this driver with Display Driver Unintsaller then install 466.xx,but it doesn’t work.

Can you elaborate on this part? What doesn’t exactly work or are you still getting Rendering Device Lost errors? If so, try reinstalling the older driver again, but then uninstall and reinstall Overwatch as well.