Thank you for the informations.
Maybe you didn't understand correctly, I suggested you let Windows reinstall the generic GPU drivers, not CPU, you don't need to mess with your CPU drivers.
But if you don't mind, I suggest you switch to using your monitor's native resolution so you don't have problems, it's the best option.
I'm glad you solved the problem with the sound, in case the problem happens again:
-Let Windows reinstall all generic sound drivers:
Windows +X, Device Manager, under Sound Controllers, right click on all drivers, Uninstall. Under Audio Inputs and Outputs, right click on all Drivers, Uninstall. Restart the PC.
-If our conversation was helpful in any way, please consider marking as replied to help other users, or leave more details.
Yours sincerely,
Claudeir