If your PC freezes or reboots when starting the game with NVIDIA DLSS Frame Generation enabled, this could be related to the Max Frame Rate setting in NVIDIA Control Panel or NVIDIA App.
As a workaround, you can disable the Max Frame Rate setting in NVIDIA Control Panel or NVIDIA App.
This setting can be found in:
NVIDIA Control Panel -> Manage 3D Settings -> Max Frame Rate -> Off
or
NVIDIA App -> Graphics -> Max Frame Rate -> Off