Your not serious I hope. How in the heck do you plan on reformatting without a cd ? Also, how in the heck do you reformat without installing? Do you have any idea what you are talking about?
Your big problem my friend that is quite common with every thread youy started here is that you have no idea what you are talking about and you continually show disrespect for instructions given by people who do know what they are doing then you summarize your own thoughts like you are some knowledgeable resource...
Im sorry for being curt here but you need to learn to read a little without skipping steps.