How to fix the error message: 'This copy of Windows is not genuine' 


 


To enter a (new) key you first need to follow the steps below:


 


1. Click on Start button or Start ORB and go to All programs -> Accessories.


2. Now right-click on Command Prompt shortcut and select "Run as Administrator" option.



3. Now run the command slmgr.vbs /rearm



4. The Message Command Completed successfully should show after a few seconds.


5. Reboot the computer and enter you product key