cant install SP2 due to invalid product key for XP pro...

a friend installed windows xp prof on my puter...it has an invalid product
key... i cannot install SP2 due to this... how can i remove this version to
install Home Edition i have purchased?

Since there is no downgrade path from Windows XP Pro to Home, a Clean
Installation of Windows XP Home is necessary:
http://www3.telus.net/dandemar/cleanxp.htm
Back-up all important data since all data will be lost.

Next time find a knowledge friend since it appears this one was of little
help.

Also see:
http://www3.telus.net/dandemar/invalpk.htm

--
Jupiter Jones [MVP]
http://www3.telus.net/dandemar
http://www.dts-l.org


"tink" <> wrote in message
news:020B3D47-05FE-4654-86F1-...
>a friend installed windows xp prof on my puter...it has an invalid product
> key... i cannot install SP2 due to this... how can i remove this version
> to
> install Home Edition i have purchased?