Tu peux utiliser Cinema 4D sur l'ordinateur de ton choix. La licence n'est pas liée à la machine, mais à l'utilisateur.
cf. EULA:
"You are granted, subject to all of the terms and conditions of this EULA, a non- exclusive license entitling you to use the Software in accordance with this EULA on all of your hardware. If you have purchased a single user license, you are not entitled to install the Software on more than one computer system. If you have a single user license and you replace the hardware, you must delete the previously installed Software from the originally used hardware."
http://www.maxon.net/about/legal/eula.html