For example, if you own a 3-Machine License, you can use your license key for up to 3 machines without needing to use the unlinking process.
If you already have 3 machines linked, you must unlink one before you can use Discovery on a fourth machine.
License
Deactivation
How to unlink and deactivate your machine license.
To deactivate your license, click “Unlink Machine License” within Settings.
Each license is bound to a specific machine. To use your license after a computer reset or on another machine, you must first unlink it from the current machine.
If you own a multi-machine license, you don’t need to unlink your license for each machine you add.