HOW TO REPAIR A OBSERVE THAT DOES NOT SHOW FOLLOWING DISABLING IT IN PRODUCT MANAGER?

Disabling the observe in the Device Manager can from time to time bring on a disheartening problem where the keep an eye on refuses to Show anything, leaving the user not able to begin to see the desktop screen. This problem is usually very alarming, especially when the thing is that the CPU is on and all its lights are functioning accurately, but