How window 8 boot, what are the steps, what program, firmware involved to start Window 8?

[wsung]

As title, can someone teach me how Window 8 start from turning on the power button, and what program my pc/laptop execute to start Window 8, where is the location of these program/firmware files ?

 

[Trouble]

See if this article has any answers to your question.
http://www.overclock.net/t/1453560/windows-the-startup-and-shutdown-process