Hi Carlos Gomez
To transfer a license from one PC to another there is needed to deactivate from the old PC and reactive on the new one . This wiki https://community.sdl.com/product-groups/translationproductivity/w/customer-experience/1331/how-to-transfer-my-existing-licence-to-a-new-computer shows how to do this.
Hope this helps ,
Best regards
Loredana