Earlier I posted about the command line tricks required to activate Windows 8 installed from a volume licence media, because it seemed that the Change product key window is missing from the new OS (this was the case of the Activation Error: Code 0x8007232b. DNS Name does not exist – just for the search engines).
Well, the window is there, but you need a new way to display it. Here is the magic word you can enter into a Run dialog:
And here comes the well-known Enter product key to activate Windows dialog:
Could someone bring back the button to the Computer properties window, please?