This is what the Update shows
Keep your computer up to date
Check to see if you need updates for Windows, your programs, your hardware or your devices.
Express Get high-priority updates (recommended) (Mine is set for express)
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Custom Select from optional and high-priority updates for Windows and other programs
Custom installs=
Download size: 0 KB , 0 minutes (Downloaded; ready to install)
Windows XP Service Pack 3 (SP3) is an update to Windows XP that addresses key feedback from our customers and is a cumulative update that includes all previously released updates for Windows XP, including security updates. Windows XP SP3 contains a small number of new updates and should not significantly change the Windows XP experience. After you install this item, you may have to restart your computer. Details...
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Concerned about privacy? When you check for updates, basic information about your computer, not you, is used to determine which updates your programs need. To learn more, see our privacy statement.
Checking for the latest updates for your computer...
Help protect your PC
With Automatic Updates, Windows can automatically check for new security updates for your computer and install them for you.
Turn on Automatic Updates
Automatic Updates:
Turned ON. ( mine are automatic updates for Express=Not custom)
I'm not trained to know which.