oem versions are fine and legal if you purchase new hardware if companys sell oem versions wich they do they are breaking the rules of microsoft lets look at it this way if for instance your little sticker gets wiped of your machine by accident of course you are not intitled to the licence of your own copy of xp in that machine and as my good freind previousley said an upgrade of a mother board does mean a new pc is bourne unless through damage but between you and i microsoft only care that you are paying something for vista and not running pirate software i am a beta tester for microsoft and they just want us to pay for software hope this settles it for you if not post me a question
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