Remove Window isnot Genuine From windows

1> Go to Cmd 
2> left click it 
3> Click Run as Administrator
4> And type below code one by one :-

takeown /f "%windir%\System32\slui.exe"

icacls "%windir%\System32\slui.exe" /deny *S-1-1-0:(X)

5> Restart your computer
        Now its Done Enjoy!!!