Have you run the Vista Upgrade Advisor?
That's the first step for any Vista installation.
Personally, I shy away from upgrade installs. IMO it'll just import XP
stuff into your Vista system - and Vista may not catch each and every one of
them (there's just too many different combinations of software and hardware
out there to be sure).
Rather, I'd suggest that you backup all of your files/data to removable
media, then try the Custom option for installing Vista. This'll give you a
fresh copy of Vista to work with - and it won't contain those unknown items
from XP that may trip you up.
After the custom install, ensure that you visit Windows Update, install
Vista compatible drivers for all of your devices, and download Vista
compatible programs (such as antivirus).
> I have tried several times to upgrade to Vista from XP. I get a message
> "Windows could not update the computer's boot configuration. Installation
> cannot proceed".
> I have tried using your suggestions to another user with the same problem
> and it has not worked.
> "Disable any boot time protection in the system BIOS, and uninstall any
> active antivirus software in the existing system (note that I said
> uninstall, not just disable). You can install a Vista compatible version
> after the upgrade completes."
> I uninstalled my anti-virus program (Windows Live OneCare) and I looked at
> the BIOS settings but cannot see anything about boot time protection.
> I have spent a lot of time getting nowhere. I have an AMD Athlon 64 3500+
> processor on a Gigabyte GA-K8NPRO-SLI, nForce4 - SLI; Sckt 939 motherboard
> currently running XP SP2 with all updates.
> This OS is very expensive and I would like to get it installed without
> spending hors and hours trying and failing.