To move your Pix4D license from one computer to another:
1. Log out of Pix4Dmapper desktop application on your current computer: How to log out Pix4D Desktop.
2. Install Pix4Dmapper on your new computer: Software Download and Installation.
3. Launch Pix4Dmapper on your new computer and log in with Pix4D account: How to log in Pix4D Desktop.