The main intention for this change by Microsoft is to limit the number of keys being compromised. There is only an official Windows 8.1 / 10 logo sticker instead. If you buy a Windows 8.1 or Windows 10 pre-installed computer, you will no longer see a sticker on the back or top of the machine with 5×5 product key printed on it. The OEM license model has changed since Windows 8.
