How the hell do you "accidentally" format your drive?!? I mean dafuq man?!? I feel you bro. Although I've never done it.
So you accidentally right-clicked your hard-drive, accidentally clicked format, and accidentally completed that little format window? You are one of the most talented people I know...
trolololololololololololol!! Just kidding. How can you "accidently" do that lol. I feel bad for you now ^-^