[Fix] Windows 7 is not Genuine Error Message, Make It Original and Activated Again

This_Copy_of_Windows_is_not_Genuine.pngYou were using genuine Windows 7 without any problem. It was activated properly. But one day when you logged into Windows, you received following message:
Windows is not genuine
Your computer might not be running a counterfeit copy of Windows.
Along with the above mentioned message, you also noticed that the desktop background became black and following error message was shown on the bottom right corner of the screen:
This copy of Windows is not genuine.
Also when you checked System Properties, you got following error message: