Can I update Windows XP without using Windows Update?

Episode 924 (2:06:40)

Glen from Georgia
Windows XP

Glen has an issue reinstalling Windows XP on an old Gateway PC. He installed it, and everything works except Windows Update. Now he wants to get SP3, but wants to know how to do it without Windows Update working. Leo says to go to the Microsoft Update site and download all the updates offline. It's called a Network Installation.

According to the chatroom, a certificate update from the Flame virus blocks Windows update on older machines.

Here's how to download Windows XP SP3…
http://support.microsoft.com/kb/322389?wa=wsignin1.0#method21

Windows XP Service Pack 3 FAQ…
http://www.winsupersite.com/article/faqtip/windows-xp-service-pack-3-faq

Do I need to install Service Pack 2 before installing Service Pack 3?…
http://answers.microsoft.com/en-us/windows/forum/windows_xp-windows_update/do-i-need-to-install-sp2-before-installing-sp3/1c5dfe78-9063-41c4-89fb-b9bea0155c46?msgId=77194557-474a-4c73-ad8b-7934e7edebd6

Knowledge article on installing SP3…
http://support.microsoft.com/kb/943144

Windows Service Pack Center…
http://windows.microsoft.com/en-US/windows/service-packs-download#sptabs=xp

Installing SP1a, SP2, and then SP3…
http://www.microsoft.com/en-us/download/details.aspx?id=19751