disable shutdown

• In this section we will see, how to disable the Shut Down option in the Shut Down Dialog Box.
  
• This trick involves editing the registry, so please make backups. Launch regedit.exe and go to : HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
  
• In the right pane look for the NoClose Key. If it is not already there then create it by right clicking in the right pane and selecting New > String Value. (Name it NoCloseKey )
  
• Now once you see the NoCloseKey in the right pane, right click on it and select Modify. Then Type 1 in the Value Data Box.
  
• Doing the above on a Win98 system disables the Shut Down option in the Shut Down Dialog Box.
  
• But on a Win95 machine if the value of NoCloseKey is set to 1 then click on the Start > Shut Down button displays the following error message:
  This operation has been cancelled due to restrictions in effect on this computer. Please contact your system administrator.
  
  
• You can enable the shut down option by changing the value of NoCloseKey to 0 or simply deleting the particular entry i.e. deleting NoCloseKey.
  
• Instead of performing the above difficult to remember process, simply save the following with an extension of .reg and add it's contents to the registry by double clicking on itREGEDIT4 [HKEY_CURRENT_USER \Software\Microsoft\Windows\CurrentVersion\Policies \Explorer]"NoClose"="1"