HOW TO FIX A MONITOR THAT DOESN'T DISPLAY SCREEN RIGHT AFTER DISABLING IT IN UNIT MANAGER?

Disabling the check in the unit Manager can sometimes result in a annoying circumstance wherever the keep an eye on refuses to Screen something, leaving the person struggling to begin to see the desktop display. This difficulty could be fairly alarming, particularly when the thing is that the CPU is on and all its lights are working accurately, how