How to reset Windows XP/2000 default system security

I bet some of you guys have had these "power users" that absolutely screw up their own workstations so much so that you as an administrator can't control the file system nor control the machine remotely.

Well...

To restore Windows 2000/XP’s default system security you can execute following command:

secedit /configure /cfg "%systemroot%\security\templates\setup security.inf" /db waisaw.sdb /verbose

If file “%systemroot%\security\templates\setup security.inf” does not exist, retrieve it from another XP machine.