• Open the Windows Registry. (Start menu -> Run -> type regedit)
  • Navigate to the following Registry key:

HKEY_CURRENT_USER\Software\Microsoft\Windows\Current Version\Policies\Explorer
  • Under the Explorer key, in the right pane create a new DWORD value called NoControlPanel and change its value to 1 to disable the Control Panel and 0 to enable the Control Panel.

  • Now if you try to open the Control Panel, you will see the error message