Solutions for desktop windows 7 black screen

Solutions for desktop windows 7 black screen
Desktop Windows 7 black screen that usually happen on the operation of this system, what do you know why ?. It can happen because the windows had not been the activation or the problem of "GENUINE", for the loyal users of windows 7 if reinstall windows after his first check was already in the windows activation or not. Below I have prepared links to download the software when the error occurred.