Upgrade from winXp Home SP2 to Pro ??

I have Winxp home with SP2 (all obsolete and uninstall files are deleted),
and tried to upgrade to winxp Pro from its CD. But crazy system says: a new
operation system ( I beleive SP2) is installed.
Is there any way to overpass this msg and upgrade from home to pro without
removing present system or uninstalling SP2, and next, again install SP2 ?????

Best, Alex

Uninstall SP2 or slipstream the XP Pro CD with the downloaded SP2 file and
burn another CD. Do a Google search on slipstreaming for info.

"Alex52" <> wrote in message
news:583B74CF-AA26-4896-B033-...
>I have Winxp home with SP2 (all obsolete and uninstall files are deleted),
> and tried to upgrade to winxp Pro from its CD. But crazy system says: a
> new
> operation system ( I beleive SP2) is installed.
> Is there any way to overpass this msg and upgrade from home to pro
> without
> removing present system or uninstalling SP2, and next, again install SP2
> ?????
>
> Best, Alex