this copy of windows is not genuine fix windows 7
Genuine and activated Windows 7 may sometimes been detected as “pirated”, illegal, rogue or not genuine, despite the operating system has been fully paid for, or has been able to used and fully activated all the while. The symptom is that immediately after log on, the following Windows Activation window will be displayed:
Windows is not genuine
Your computer might not be running a counterfeit copy of Windows.
In addition, the computer desktop background is turned to black, and the following error message is shown on the bottom right corner of the screen:
This copy of Windows is not genuine
When user view the system information in System Properties (accessible via Control Panel -> System and Security -> System), the following error message will be visible too: