Try the Network Installation instead of the Express Installation:
http://www.microsoft.com/downloads/d...displaylang=en

Have you verified the server is free of viruses, spyware and other malware?

Also see the Service Pack Installation Checklist:
http://www3.telus.net/dandemar/spackins.htm
Much of it also applies to Windows Server 2003.

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


"Chandler" <Chandler@discussions.microsoft.com> wrote in message
news:062CDF6E-AA23-4DD3-9FFB-C0B96A212756@microsoft.com...
> When I try to use windows update to install Server 2003 SP1 it downloads
> the
> small installation file but then just states the installation failed. It
> doesn't provide further details.
>
> Does anyone know why this would happen or where I can find out more
> information on the server or why the upgrade failed?