Activate Windows 8 when Receiving “DNS name does not exist” error

After installing a fresh version of Windows 8 Enterprise and adding it to our AD domain, I proceeded to active the copy, however I received the “DNS name does not exist” error when clicking activate.

During the installation process I never entered a product key, however it appeared that one was showing on the activation screen.

To enter your correct product key go to the metro start menu and type “slui 3”, this will open up a window where you are able to enter your actual product key. Once entered you should now be able to activate your copy of Windows 8.