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Windows 7 Upgrade and pre-existing OS licensed

Last response: in Windows 7
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December 12, 2009 2:12:19 PM

I have a windows 7 DVD provided by my school that says "64-bit x64 upgrade: Pre-existing OS license Required"


I have one desktop computer with Vista
and one laptop also with vista (both with legit keys & activation)

Question is: can the upgrade DVD be used on the two machine ?
Will it require the old vista key, the new win7 one, or both ?

a b $ Windows 7
December 12, 2009 2:56:24 PM

You can only use the disk to upgrade one computer. You'll need the new Windows 7 key. But if the existing systems are 32-bit then you'll only be able to do a fresh install, not an upgrade.
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December 8, 2010 2:23:19 PM

Got a similar situation. I think its the exact same disk. Windows Key on the back of the package.

Can I do a pure fresh install with a clean HD? Basically an install on a fresh build.

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