HEllo

I recently bought the Alienware M17x Laptop and i have decided that i need to format the laptop due to school reasons so now i have two questions:

1: if i format and reinstall windows, do i have to go and download the things like alienrespawn and the alienfx(all the goodies that were already installed on the laptop.

2: i cannot find my windows key, i read somewhere that it is on the disc, does this mean its not going to ask me for a new key or what, i do not understand that so welll.

Thanks in advance