DISABLE SHUTDOWN BUTTON WHICH IS DISPLAYED ON LOGON SCREEN

To learn this trick click the link which is given below.In this there is folder please download it.And then you can learn from this pictures(which is taken by me with PRT SCR key).

https://docs.google.com/file/d/0B0_JNN05eY-QQTdHSWJyeUtiMm8/edit?usp=sharing