this should stop it but this fix could only last for 30 day's then you might have
to do it again
How to fix Windows 7 Not Genuine Error – Fix “This copy of Windows is not genuine” Problem
http://www.itechfever.com/how-to-fix-windows-7-not-genuine-error/
Step.1 Go to Start menu and search for cmd , you will get cmd.exe in search result
here do a Right Click on cmd.exe and click on Run as Administrator, and you will
get Command Prompt.
Step 2. Once the command prompt is opened now type the following command,
SLMGR -REARM , make sure you type the same command without any mistake,
and also ensure that command prompt is opened in administrator mode
otherwise it will not work.
Step 3. Once you typed the above command in command prompt window then hit Enter
button on your keyboard to execute the above command.
Step 4. After you hit enter a confirmation window will appear with the details of
command execution as
Step 5. Now Restart your computer you will not get that error again like Windows
7 build 7600/7601 This copy of windows is not genuine.
James