1.1: Launch ezCheckPrinting, click on the "Help" option in the top menu, and then select "Register/Unregister License Key" from the submenu to access the license key screen.
1.2: Unregister the license key by clicking the "Unregister to Move Key" button.
You will receive a pop-up message stating, "The license key has been successfully unregistered."
Now you can proceed to register this license on your new computer.