disable "turn off computer" from start menu

You can prevent users from shutting down public computer, with some edit of registry you can disable "turn off computer" option. here is how to do it.

• Open registry editor
• Navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
• In the right side create new DWORD value and named it as Noclose
• Now double click the key and put 1 in the value data field
• Now close the registry editor and restart your computer after any changes to go into effect

Note - if you want to enable "turn off computer" option again, simply put 0 in the value data field of Noclose key, or delete the key.