Har installeret på mange maskine har dog haft nogen problem som jeg har løsninger til her :)=
Problem med at updatere Sp3 på grund af KB925877
How to get past error KB925877 when installing Win XP SP3
When installing today Windows XP SP3 from Microsoft Update, I got an error message immediately after it began downloading the update. Tried downloading the entire package from the Microsoft Download Center and after unpacking the installer, I got an error message saying that I needed to uninstall KB925877, a package related to remote desktop connection.
If you have installed the latest version of RDP, then you must have installed the package KB925877, but this package is not visible on the Add/remove programs, so you can't uninstall it on that location, you must search on the registry editor and delete the corresponding registry.
The exact path is HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\Current Version\Hotfix\KB925877.
Just delete the registry and try installing SP3 one more time, it should run fine and won't give you any other error messages.
Windows Update virker ikke efter Server pack 3
Windows XP Service Pack 3 installs a new version of Windows Update, but it forgets to register it.
try the following:
Log on as an administrator, and run cmd.exe, and issue the following commands:
> net stop wuauserv
> cd\windows\system32
> regsvr32 wups2.dll
> net start wuauserv