Use XP Pro upgrade on a Vista Home machine ?

New PC bought with Vista pre-installed. I own an unused XP
Professional Upgrade CD.

Can I upgrade / crossgrade / downgrade from Vista to XP Pro using the
upgrade CD ?

I'm anticipating failure when it doesn't detect a previous complying
product - is this so, and if so what media and licensing steps offer a
workaround ?

Thanks,


Phil

Hi Phil, no that won't work, some oem do offer a revert back to xp disc,
depending on manufacturer. Do you have a old windows 98 disk, u can use
that as your previous os, you just install win xp upgrade disc, it will
ask for a previous version which u put in for a couple of minutes, then
xp will continue to install.


--
Gigabyter64

Anddd!! also most probably you will need to delete the vista partition
start a fresh partition & install on that

--
Gigabyter64

There is no workaround and no end-user right to change from Vista to XP.
You need to contact the source you bought the computer from and either have
them supply Windows XP for it or replace it with a Windows XP system.

--
Richard G. Harper [MVP Shell/User]
* NEW! Catch my blog ... http://msmvps.com/blogs/rgharper/
* PLEASE post all messages and replies in the newsgroups
* The Website - http://rgharper.mvps.org/


"PhilT" <> wrote in message
news:e40e68a9-5a37-4163-9c21-...
> New PC bought with Vista pre-installed. I own an unused XP
> Professional Upgrade CD.
>
> Can I upgrade / crossgrade / downgrade from Vista to XP Pro using the
> upgrade CD ?
>
> I'm anticipating failure when it doesn't detect a previous complying
> product - is this so, and if so what media and licensing steps offer a
> workaround ?
>
> Thanks,
>
>
> Phil

Vista considers XP to be a downgrade, as it is an older OS, and won't do it.

If you manage to get a '98 and upgrade from there, first check out your
computer's manufacturer
website to see if XP drivers are available for the Hardware installed in
it(Mobo, etc)
--
Mick Murphy - Qld - Australia


"PhilT" wrote:

> New PC bought with Vista pre-installed. I own an unused XP
> Professional Upgrade CD.
>
> Can I upgrade / crossgrade / downgrade from Vista to XP Pro using the
> upgrade CD ?
>
> I'm anticipating failure when it doesn't detect a previous complying
> product - is this so, and if so what media and licensing steps offer a
> workaround ?
>
> Thanks,
>
>
> Phil
>

On Mar 18, 9:02 am, "Richard G. Harper" <rghar...@email.com> wrote:
> There is no workaround and no end-user right to change from Vista to XP.

apart from Vista Business and its downgrade rights, so could I use a
Vista business upgrade followed by the downgrade rights to XP ?


Phil

Nope, not unless you have a valid key and media for XP, you can't.

--
Richard G. Harper [MVP Shell/User]
* NEW! Catch my blog ... http://msmvps.com/blogs/rgharper/
* PLEASE post all messages and replies in the newsgroups
* The Website - http://rgharper.mvps.org/


"PhilT" <> wrote in message
news:16e0b98d-c6a2-4b7d-9cc5-...
> On Mar 18, 9:02 am, "Richard G. Harper" <rghar...@email.com> wrote:
>> There is no workaround and no end-user right to change from Vista to XP.
>
> apart from Vista Business and its downgrade rights, so could I use a
> Vista business upgrade followed by the downgrade rights to XP ?
>
>
> Phil