If anyone is having problems with this service pack update then perhaps my experience might help.
I tried using MS Update which was about as speedy as a garden slug. It then proceeded to give me weird error messages and I am pretty sure that whatever it had managed to load was in no way stable.
My advice if you have problems:
1. Go to the MS site and get the full download. It is called WindowsXP-KB936929-SP3-x86-ENU.exe and is 324,030Kb
2. Run it. If you get to the bit where it complains about "unrecognised files" and wants to revert to the old versions.............don't let it, make it load the new files. ;)
Hopefully that will resolve the issue, as it did for me.
I have no idea what these files actually were, but at a guess I would suspect unsigned drivers, as I did see it building a list of third party drivers earlier in the installation?
