Whenever I used Windows XP update, it said that there is errror to install Windows XP Services Pack 1 . How can this problem be solved? I think I have installed Service Pack 1 and even 2 before. It may be that I deleted/uninstall them accidentially and that's why I have this problem now.

Any advices and suggestion? I don't want to un-install Windows Xp and re-install it . By the way, I am allowed to re-install Windows XP because my original Windows XP disk is Windows XP Home Edition and it always said that the version in my computer is newer than the one in the installation disk.

Sorry for long description.

Many thanks in advance.