You can use the Nvidia app to change most of the game related graphical details, and of course the old control panel can still be accessed for other changes. Pretty sure more features from the old control panel will be updated and moved into the new app in the future, plus new features...
You need to grab the controlpanel from the Microsoft Store if you do. If you don't then just DDU your driver in safe mode, plug out the ethernet/wireless connection and install the standard Nvidia driver manually. This will fix it. I can write or link you a step-by guide if you ...