some computers won't run the updates.
If you have installed a high quality security program, you really don't need updates.
Turn the automatic updates off. Install Microsoft tweak UI XP, to turn off the message balloons.
The balloons keep flashing messages that say: automatic updates are turned off!
Keep a backup of your personal files.
If the machine won't run the updates, just turn them off, and stop worrying about it.
Many machines including this one have the updates turned off, with no problems.