Simply plugging the key in and running Archicad should make it start with the commercial licence.
If it doesn't maybe the codemeter drivers have not been installed.
Opening any educational file while in the commercial version will revert it to educational license automatically as far as I understand.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11