Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi David,
I am Dave, I will help you with this.
The Serial No. recognition is for Microsoft deices like a Surface.
To register your device on your Microsoft Account, log into Windows 10 with your Microsoft Account, then access the Microsoft Store App with that same Microsoft Account
That device will then automatically be added to your Microsoft Account, it may not happen immediately, but it will happen automatically.