Would like to do a fresh install on a New Machine (Awesome Machine)

I purchased a new Surface Book last night (amazing machine !!)

I am super OCD so I would like to do a fresh install. How Do I keep the Windows 10 pro activation key?

I don't want to go through windows settings, I would like to boot from a USB and start fresh formatting the drive.

Can somebody help me?
Do I need surface specific drivers (For pen, base attachment, ....)

I have a copy of Windows 10 Home that I purchased on USB but I would like to use the Pro that came with system.

Thanks!!

from Windows Central Forums //forums.windowscentral.com/showthread.php?t=448812&goto=newpost
via IFTTT