Windows 10: How do digital licenses work/how many do I have?

I have an personal Microsoft 365 subscription. I have 3 devices licensed for Windows - 2 for Windows 11 which are in a Parallels VM, 1 for Windows 10 on a Dell laptop purchased with Windows an older laptop.I just created a VM in Parallels, and after logging into my Microsoft account, I rebooted, and I have an activated Windows 10 Pro license that shows up as a device in my account page when I log into Microsoft's account site - I now have 4 licensed Windows devices. Where is that license coming from, and how many do I have? I checked, as far as I can tell no Windows licenses come with

:)

 

Digital license

Thats how licensing works with Windows 10, the digital license is attached to your Microsoft Account and makes it easy to reactivate Windows 10 in the event you reinstall it.

Learn more:

• Use a Digital
  License to Manage and Activate Windows 10

 

digital license

Thanks for your suggestion. I solved the problem with my License Key with Belarc Advisor Software. The Digital License code was a numeration that Microsoft Corporation has given to all that have Windows Account specially to those that has free upgraded
to Windows 10. Under the Digital License appears the original code.

 

Link Microsoft Account to Windows 10 Digital License  

This is what i get on step 2