I can use it on my laptop now, right? so yes, I did pay for it. If I never change it over to W7, it will still be legal. Basically the way I see it is, I have two legal OS's due to the mistake of the laptop manufactor, so I don't see why I can't make good use of it. It's not like MS didn't get there money for it, it was paid for by the manufacturer.
I'm going to call MS and see if I can do this...I know that quite a few people have upgraded to W7 from Vista and then installed the upgrade on a different PC (not the PC which has the OS which qualified for the upgrade).