HELP, Hacked with machine account

From: HACKED OFF (OFF)_at_discussions.microsoft.com)
Date: 07/29/04 

Date: Thu, 29 Jul 2004 12:32:36 -0700

I was hacked by a person usering a machine$ account and nt authority. How can I view the system accounts and how can I disable the NT Authority. Looks like hacker has a script running to change all my settings after I logon. How can I tell what is being loaded and in what order

Thank for you all your help