Hello @DanielD54 Please follow the steps below to activate Parallels on your new Mac. 1. Using your web browser, download your version of Parallels Desktop here. 2. Launch the downloaded .dmg file, double-click on Install Parallels Desktop.app, and wait for the installation to complete successfully. 3. Go to Finder > Applications > Parallels Desktop to start the application. 4. Sign in to your Parallels account and activate Parallels Desktop. Upon activation on the new Mac, you will see a warning that the licence is already in use. 5. Click on Activate on This Mac, and the current copy will be successfully activated. As a result, the licence will be automatically deactivated on the old Mac. Regards,