Here is how you do it:
To begin, click Start > Settings > Update & security > Activation.
There are some interesting changes users will see. The first one is the obvious change from Windows is activated with a digital entitlement to Windows is activated with a digital license. At the bottom is a new option called Add a Microsoft Account.
Click Add an account to start linking your account; you will be prompted to sign in using your Microsoft Account and password.
After signing in, Windows 10 activation status will now display Windows is activated with a digital licensed linked to your Microsoft account. A mouthful I know, but this is how Microsoft will reduce the need always to know that 25 alphanumeric product key users are accustomed to losing or misplacing.
Learn more:
https://www.groovypost.com/how-to-use-digital-l...