You need a valid product key

You must have a valid product key in order to continue using Windows. You entered:



If your copy of Windows is missing its product key, or if you think the product key you received may not be genuine, call the Microsoft Piracy Hotline at 1-800-RU-LEGIT in the U.S. or Canada. In all other countries/regions, contact your local Microsoft subsidiary.

If you don't have a valid product key, click the Shutdown button below to turn off your computer:

When you restart your computer, you'll return to this screen.



To enter your product key again, click Back.