1. Start your computer.
2. In the Start Menu, run a search for CMD.
3. Right click on CMD and select ‘run as administrator’.
4. Run the program and a command box will open.
4. Type “SLMGR –REARM” in the box, press enter and wait for a few minutes.
5. A dialog box that will read “Command completed successfully. Please restart the system for the changes to take effect”.
6. Restart your computer.
After you restart the computer, the ‘Not Genuine’ message will no longer appear on your screen.