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I couldn't find the 3rd box of Windows 7 Ultimate that I bought, so I tried using the 2nd box which I already used for activating Win 7 on my Notebook computer...

Strangely, it says Activation successful... (on the desktop computer) and my Win 7 Ultimate is not a family pack... so how come it can be activated on two PCs?

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Windows can be activated more than once. Even when that fails you can still call up Microsoft and they can give you a number to type in by activating over the phone. The main idea is that people will have to re-install their computer and it would be a PR nightmare to only allow you to install Windows once. Maybe I upgraded to a new computer and trashed my old one. – Daisetsu Apr 1 '11 at 21:12
    
Give it a few days, and one of them will start to consider itself nonlegit. – Tarnay Kálmán Apr 1 '11 at 21:15
    
are you sure...? you are talking as if it will recheck? – 太極者無極而生 Apr 3 '11 at 3:14

Probably to save money on support calls when a person has to do a reinstall from scratch. When we purchased a single license of Windows 7 through our Volume License agreement, we got a MAK that would activate 50 copies of Windows 7.

Just cause it works doesn't make it legit.

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As long as he owns 3 copies hes fine. Microsoft doesn't care so much about which copies are activated as much as if the users owns enough licenses. – Jeff F. Apr 1 '11 at 21:01
    
I wasn't intending to make the case that he was or wasn't acting improper. My point is only that Microsoft does allow extra activations in different circumstances. – emgee Apr 1 '11 at 21:03

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