Not really.
How about this:
"Once a qualified Windows device is upgraded to Windows 10, we will continue to keep it up to date for the supported lifetime of the device..."
If is my PC, what device are we talking about?? I upgrade my PC from time, so basically stuff always change inside it. Again, the same question I've asked before and still no clear answer.
If you upgrade to Windows 10 from Windows 7 or Windows 8 then the license will be tied to the motherboard in that PC, if it dies and you change the motherboard the license will not work.
If you buy a retail version for 200$ then you can change motherboards and the license will work.