Gizmo2D3D Internet connection is required to utilize the Creative Cloud. You could install a trial, connect to the Internet on the 64-bit system, and then sign in using the Adobe ID tied to your subscription. You would need to repeat this process at least every 30 days or less to allow the software to verify your eligibility to use the software however.
Is there no option of providing a wireless connection or some other way of accessing the Internet on the 64-bit computer? If not then I would recommend purchasing a perpetual version of our software as opposed to a subscription.