I recently reinstalled Windows XP, downloaded 28 critical updates through Windows Update using the new v5 updater.
After reboot, still 4 more critical updates and 5 recommended remain. However, each one fails. I get the message "update failed." Upon restarting the machine into Safe Mode with networking the following error message 0x8007043C is given. There is no information about this anywhere.
I believe this is a new issue with the new windows updater, version 5.