Disabling Task Manager, Enabling or disabling Task Manager

Task Manager is a "Life saviour" as in case when you are hang up condition or loop is produced. I don't know why you want to disable it but if so then here it is: 

Enabling Task Manager:

• Goto ->
  HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
• Now, add a new DWORD value
  
  
  "DisableTaskMgr"=dword:0"Type"=Value:0
• Exit Regedit

Disabling Task Manager:

• Goto ->
  HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
• Now, adda new DWORD value
  
  
  "DisableTaskMgr"=dword:0"Type"=Value:1
• Exit Regedit