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Windows 7: 32-Bit License v.s. 64-Bit License

24 Feb 2011   #1

Windows 7 Ultimate
32-Bit License v.s. 64-Bit License

Hello. I have an XP computer that I'd like to put Windows 7 on, but it would have to be a 32-bit version. I would like to be able to scrap the computer and get a new one that would handle a 64-bit installation of Windows 7. I currently have a genuine copy of 64-bit for a different computer, which has its own license.

If I purchase a 32-bit version and use that until I need to destroy the old computer, and then install the 64-bit version on a new computer using the license code from the 32-bit copy, will that work? More importantly, is it legal?


My System SpecsSystem Spec
24 Feb 2011   #2
Microsoft MVP


You can use either 32-bit or 64-bit with any Win7 license, but only one at a time.

Changing the bit-version requires a booted clean reinstall. Clean Install Windows 7

If you bought Full Retail or Upgrade then they can migrate to any machine of your choice.

OEM is tied to the first mobo it's installed upon.
My System SpecsSystem Spec

 32-Bit License v.s. 64-Bit License

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