If you have the Anniversary update for Windows 10 the license will be tied to your Microsoft account and not to your hardware.
Here is some more information on this: https://www.howtogeek.com/226510/how-to-use-your-free-windows-10-license-after-changing-your-pc%E2%80%99s-hardware/
It will not matter how you go about doing this, each of you login to the computer you have with your Microsoft Account (MSA) and check if you are using the digital entitlement as described in the linked article. If you don't use an MSA or don't have one, create one and login anyway. Once you swap the drives you can do whatever you want now, just login with your MSA to reactivate then you can keep using MSA to login or disable it and only use a local account.