I do not know how you feel about the current situation but I’m feeling a little bit overwhelmed by the Service Pack Release spree that Microsoft seems to be in lately. Just a few hours ago they released the Windows XP Service Pack 3 Release Candidate 2 Refresh to the public which is available in Windows Updates.
that one needed a special Registry key from Microsoft to download this new Service Pack Release Candidate for Windows XP. This is not necessary anymore, at least not on my end. The Service Pack 3 was offered to me even though I did not make the changes to the Registry.
The Service Pack 3 is also available
right from the Microsoft website with a size of roughly 315 Megabytes. Only the English, German and Japanese updates are available right now but it surely will not take long until the two other languages (French and Spanish) are added as well.
The same website also contains the Registry key that needs to be added to Windows XP to download the Service Pack 3 in Windows Updates.
Windows XP Service Pack 3 Release Candidate 2 Refresh