No such option exist thru Microsoft...Only Microsoft hardware gets added to the pc is Microsoft/Hardware/Software-Driver verification,then a install takes place...Microsoft user Account can be seen at.
https://account.microsoft.com/devices/
Plus at each Microsoft/Hardware install,it asks if you want registration thru web site..Microsoft has few hardware pieces,dont get to overwhelmed with it...
My device list currently shows my Motorola phone and my Dell PC. I have another device too. It is a PC. It runs Windows 7.
The web site you list above indeed does have an option to add another device to my MS account and gives some instructions for doing it. Unfortunately, the instructions cannot be carried out on my computer.
I am not adding or installing hardware, software, or anything else at all on the computer at all. I am just trying to update the information on my MS account.
Check my post again.