If you buy a version of Windows NOT tied to any hardware, how can they
legally tell you what hardware you can and cannot run on?
Quite easily: they can licence their software under whatever terms they
want; and if that includes "You may only use this computer on one computer,
ever", then so be it. However, such restrictions to be valid must be made
known /BEFORE/ completion of the sale?
I'm sure MS would not be happy if you sold them a car, and then after they
had paid for it, for you to tell them, "Oh, by the way, you can only use
this car if you adhere to a maximum speed of 10 mph." I'm sure they'd tell
you where to get off...
Don't like it? Then don't use their software.