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Windows 7: Windows 7 Key only works with 32 bit, not 64 bit?

23 Oct 2009   #11

Win 7 Ult SP1/Win 10 Pro (all x64)

I meant in one installation at any given moment. It just means sometimes a phone activation is necessary.

This issue seems to be confined to upgrade versions, not sure why.

My System SpecsSystem Spec
23 Oct 2009   #12

Mac OS X 10.6.1, Windows XP Pro, Windows 7 Pro x64 RTM

I've just installed Win 7 download upgrade a second time (both times as a virtual machine in vmware), as I wanted to check the activation workaround here:
It happily authorised. I quit and reopend my first install, and that's still authorised.
Could be because the hardware still matches, or maybe because of the workaround?
My System SpecsSystem Spec
23 Oct 2009   #13


Clarification: You can only use the retail key on one installation at a time. The license belongs to you for life and can migrate as often as you want, but only on one machine at a time.

With Upgrades it is a bit more complicated: the key becomes tied to the underlying OS, which if it is OEM means tied to the motherboard of the one machine, or if the underlying XP/Vista is retail then the Upgrade is also portable and can migrate freely with that XP/Vista retail copy - but just on one machine at a time.

Now, here's the topper: MS Technet gives the above EULA, but admits they have no way to enforce any of this except the "one machine at a time" which they do track closely, so the Upgrade can functionally migrate to any machine whether OEM or Retail, just one at a time.
My System SpecsSystem Spec


 Windows 7 Key only works with 32 bit, not 64 bit?

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