That may not be the case. See the tread titled "Clean upgrades of OEM OS
installs that lack original media" in
microsoft.public.windows.vista.installation_setup. The appropriate quote is:
"I don't think so I haven't tried that scenario, you will not be able to
remove the underlying OS from the volume(either the boot or the system
volume), clean install would need to be to another volume. If the boot and
system partitions were different you may be able to remove the boot
partition( the one that contains \windows), but you wouldn't be able to
remove the "system" partition ( the one containing the boot files) since
the Windows Vista temp files are located on that volume and you can't
remove the temp files out from under setup.
Thanks,
Darrell Gorter[MSFT]"
--
Kerry
MS-MVP Windows - Shell/User
www.vistahelp.ca
Jupiter Jones [MVP] wrote:
> No, that has apparently changed.
> You will need to have the qualifying OS installed and then upgrade
> from Windows.
> Then you will have a choice to Clean Install.
>
>
> "Jon Acord" <> wrote in message
> news
D8F2378-919B-437B-B3A5-...
>> If I buy an upgrade disk of Vista ultimate, and format and partition
>> my hard
>> drive, I should be able to use the 'Upgrade disk' right? I belive
>> it will simply prompt me for my Windows Xp professional disk. Is
>> that correct?