Solve the problem of This copy of windows is not genuine and the emergence of the black screen

In fact, this letter is a copy of Windows that is used by non-native and you should review. But until you do that in this post very simple way in which you delete this message.

First run cmd command prompt by pressing the windows + X is selected (command prompt (admin., Or by searching for orders cmd prompt and click on it right click and choose run powers as Director in the image below.

Second, then type this line SLMGR -REARM After completion Click on Enter, and wait a little bit to that process the message that appears tmp successfully (command completed successfully).

Thirdly, restart your computer, and then you will notice the disappearance of the letter where you can then change the desktop background to any background of your choosing.