How to disable task manager in Windows Vista/XP [Registry/RegEdit]

::Disable the Task Manager using the Windows Registry Editor::

• Start Registry Editor (Start > Run > "regedit")


• Disable Current User: In the left panel, navigate to
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\system





• Disable All Users: In the left panel, navigate to
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\system


• Create a new DWORD value named DisableTaskMgr





• Set the value to 1 to disable Task Manager





• In order for this to take effect, you may need to restart your system.


The next time anyone tries to call the Task Manager, they’ll see an error: