I've tried everything to stop Windows restarting itself when I'm not around. Software that is supposed to prevent shut-down (it doesn't); that command line thing (nope). Everything but disabling the automatic updates. You'd think that'd be the first thing I'd do, but it seems I'm having a problem there too.
Although I am definitely both an administrator and the only user account on my computer, when I go into Windows Update > Change Settings I'm greeted with a happy little message that tells me "Some settings are managed by your system administrator" and all the options greyed out. So I can't change a thing.
1) Why the heck is this?
2) What can I try in order to fix it?
Sorry...fixed it with regedit: http://www.vistax64.com/vista-account-administration/127152-need-able-run-windows-update-administrator.html
That'll teach me to google first...