Vista - Downgrading to 32 bit

I just purchased a desktop computer for my work. It came with Vista Home Premium 64bit. I also purchased the Upgrade to Vista Ultimate since the ultimate version works better with our network. Some of the software that we run at work is not compatible with 64bit so I was wondering if anyones know if:

1. I can install 32bit Ultimate upgrade over 64bit Home Premium ...or
2. If I can use the 32bit Ultimate Upgrade and do a Complete re-install and install Ultimate 32bit

Thanks.

craigg1 wrote:
1. You cannot install a 32-bit operating system over a 64-bit operating
system. You must do a clean install.

2. An upgrade version presupposes you are upgrading *from* something, which
you are not since there is no upgrade path from Vista 64-bit to Vista
32-bit. Return the 32-bit upgrade and purchase a full version Vista 32-bit.

Malke
--
MS-MVP
Elephant Boy Computers - Don't Panic!
http://www.elephantboycomputers.com/#FAQ

I just tested out installing the 32Bit Vista Ultimate Upgrade. The upgrade will give you the option of doing a Full Clean Install.

You can do a clean install of Vista 64 using an Upgrade key into a
partition containing Vista 32 and when you do the Vista 64 OS totally
replaces the Vista 32 OS.
It does, however, create a folder on the Vista 64 bit desktop called
Windows.Old from which you can copy out data files that may have failed to
back up and then you can delete the Windows.Old folder.

I would imagine that you could do the reverse when you want to Upgrade Vista
64 with a clean install of Vista 32. It is at least worth a try.

"Malke" <malke@xxxxxx> wrote in message
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