I have used up my two activations, but need another activation since I got a new computer (or changed relevant parts of my existing computer system).
No problem. In the “Manage Registrations and Activations” section on the NI web site you can deactivate system IDs that you no longer need. Once you have deactivated the old system ID you can then activate a new system ID. Please be aware that a deactivated system ID cannot be used again. That means you cannot activate the product again on the computer with the deactivated system ID. Using the product on a computer with a deactivated system ID is not allowed by the license agreement.