1/ Open the Arturia Software Center
2/ Click on the small arrow located in the upper-right corner of the interface to access the "Preferences"
3/ Open the "Licenses" Tab and then click on the "Deactivate All" button
You should now notice that all your licenses should be now considered and displayed as "Not activated".
Doing so will allow you to use this activation on any other computer or to ensure deactivating all your licenses on a computer that you do not plan to use in the future.