How to create a self installing windows installer in a medium disk?

Playing with my hardware, I remember a friend who bought a new laptop mini and when we turned on the first time that’s the only time the OS on that mini-laptop get installed. I mean once it turned on, the OS seems triggered to self install.

I cant find in the internet how to do it or maybe I am searching using the wrong words.

Can any one point me where can I find an article or any one who wish to shell out their ideas?