Enable/Disable Task Manager
This tweak disables user access to Task manager. It must be applied on a user by user basis.
[Start] [Run] [Regedit]
Registry Key: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
Modify/Create the Value Data Type(s) and Value Name(s) as detailed below.
Data Type: DWORD Value // Value Name: DisableTaskMgr
Setting for Value Data: [0 = Enabled (Default) / 1 = Disabled]
Exit Registry and Reboot
The Computer Guy, July 2004