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Possible Duplicate:
Windows Vista 32-bit to Windows 7 64-bit upgrade?

I have discs for the following versions of Windows:

  • 32 bit Windows XP (full)
  • 32 bit Windows Vista (full)
  • 64 bit Windows 7 (upgrade)

When I tried to install Windows 7 on a new hard drive, I got an error saying that my key was bad. It's my understanding that this is because I was trying a full install, and I'm only licensed to upgrade.

I then installed Vista (which I'm running right now), and booted from the Windows 7 disc, selected the Upgrade option, and it tells me to remove the disc, reboot, and upgrade from the existing Windows installation. When I do that, though, it tells me that I cannot upgrade the 32 bit Vista to the 64 bit Windows 7.

Is there anything I can do to install Windows 7 with these discs?

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marked as duplicate by Ƭᴇcʜιᴇ007, Indrek, Moab, Nifle, Oliver Salzburg Jun 11 '12 at 15:44

This question was marked as an exact duplicate of an existing question.

Which editions of Windows Vista and Windows 7 are involved? – iglvzx Jun 10 '12 at 1:24
Have you tried with custom installation rather than upgrade? – avirk Jun 10 '12 at 1:25
@avirk Custom would be ideal in this case, since they only installed Vista to install Windows 7. :) – iglvzx Jun 10 '12 at 1:27
Both editions are professional. The custom install was what I did with 7, and it installed, but never got further than product code checking. – Jeffrey Jun 10 '12 at 1:28
Follow this guide – avirk Jun 10 '12 at 1:35

I ended up getting this to work. After Vista was installed, I put the Windows 7 upgrade disc in and rebooted. I installed Windows 7 using the custom install, and didn't touch the partitions, so it detected there was an old windows install on the drive (and saved the directory to windows.old). I left the key blank and unchecked the activation box (not sure if this was necessary or not), and finished the install. Then once in Windows, I just put my normal product code in, and it activated.

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you have did same as the instruct in the guide I refer you. Congrates! – avirk Jun 11 '12 at 11:21

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