Enable Task manager if its Disabled

Hello Friends,
Let me share how you can enable task manager if it disabled. 
But now follow me ! :

1. Go to St Start => Run Rand type there :

Code:

gpedit.msc

2.Now it should bring Group Policy's window , Now go like this :

Code:

User Configuration => 
Administrive Templates =>System =>
 Ctrl+Alt+Del Option=>

3.Now in the right it's "Remove Task manager" . Right Click on it and then go and then , choose "Disable", Then Click Ok , and close the window !

And That's it , now you can open Task Manager Again ! :)