Musíš to přečíst celé, ne jen jednu větu.

After the registration you will immediately receive an email with your a 30-day temporary serial number, and the Archicad 10 download link. This way you can start working with Archicad 10 immediately, and you will have 30 days to sign up for your final serial number. With this final serial number – after your student status is confirmed – you will be able to use Archicad 10 for a one-year period before re-registering.