Hi Paul,
There's no reason you should not be able to boot the upgrade disk, you may
need to change the boot priority in the system BIOS so that the DVD drive is
loaded before the hard drive.
However, there is another issue. An upgrade Product Key cannot be used to
clean install from a booted disk. It has to be used from within a running
installation of a qualifying product. Boot to XP, insert the disk and begin
the upgrade process, choose the custom install to create a new, clean
installation.
By the by, I don't agree with the "clean install only" bunch. I generally
always do upgrades, and rarely encounter issues. The ones I do see are
generally the result of malware on the system, faulty hardware, or
incompatible programs that were not removed prior to upgrading. The horror
stories come from those that do not prepare a system for upgrade, but rather
slap the disk in and let her rip - consequences be damned, then blame the
process for their own lack of preparation.
--
Best of Luck,
Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Windows help -
www.rickrogers.org
My thoughts
http://rick-mvp.blogspot.com
"Paul" <(E-Mail Removed)> wrote in message
news:Xns9A0E824C46229p4psb@207.46.248.16...
> Hi,
>
> Following previous advice not to upgrade from XP Pro, but to do a clean
> install of Vista, I am having a problem.
>
> I obviously have the 'upgrade disk', and am trying to do a 'clran install'
> as advised.
>
> However, my upgrade disk will not boot!
>
> Any suggestions?
>
> Thanks
> Paul.