LOL I saw that clip. He's flat wrong, of course. CTRL ALT DEL was chosen deliberately as a combination of keys unlikely to be hit simultaneously by accident, thus unlikely to cause inadvertant termination of a session, with consequent loss of work.
This is not the first time Bill Gates has publicly demonstrated his ignorance of Windows.
come on Bill I will pay real money if you put someone in charge of removing the insert key. you can leave it on the keyboard if you think it looks pretty just make it disappear from the system as if it wasn't connected.