This may be old news on your page but I thought I would share it on the chance you hadn't come across it. After you've isolated the cause, do not use msconfig to permanently disable the process. Windows XP gives the ability to rapidly bounce between user accounts, with Win+L. With signed drivers, you stand a much better chance of eliminating shutdown problems.
One of the hazards of being an Elder(ly) Geek, but better late than never. During such a hang, there is no response to Ctrl+Alt+Del; the mouse may or may not work. Since you indicated that it will shut down through windows and it is just the buttons that don't work I would recommend this. Is this caused by a motherboard failure? 12. - At startup the Windows XP logon screen does not appear and the computer continuously restarts 13. - How to use the Bootcfg
This combination can cause Win XP to take in excess of 10 minutes to shutdown normally. (IEEE 802.1x is an authentication standard for both wireless networks and wired Ethernet networks.) Here’s I'm trying to pinpoint what is causing this behavior, but to this point it remains a mystery. CDRALW2K.SYS.