http://support.microsoft.com/default...;EN-US;Q311806
Windows XP Restarts When You Try to Shut Down Your Computer
http://support.microsoft.com/default...;EN-US;Q320299
Windows XP Restarts Unexpectedly or Restarts When You Shut Down the Computer
http://support.microsoft.com/default...;EN-US;Q308029
Resources to Help Troubleshoot Shutdown Problems in Windows XP
Windows XP Shut Down Issues
http://www.kellys-korner-xp.com/win_xp_restart.htm
Troubleshooters for Windows XP Shut Down
http://aumha.org/win5/a/shtdwnxp.htm
Troubleshooting Windows XP Shutdown Issues
http://www.theeldergeek.com/shutdown_issues_in_xp.htm
"Prion Burger" <Prion
> wrote in message
news:95924BFB-04DB-4FF7-A342-...
> This has happened two times: I reformatted my hard drive, installed a fresh
copy of windows XP (home edition), and immediately updated my system with the
service packs on the official website.
>
> Everything has gone fine, with one exception: When I shut down my computer,
it instantly starts back up again. It stays off for a second, then
spontaneously reboots. This only happened after installing the service pack.
It didn't happen before.