How do i unistall backtrack 5r1 boot up screen with live usb

Hi ive literally given up, im tryin to use backtrack 5, but its givin me too many problems, so im quitting. But i want to know how to remove the whole boot up menu option that i get when i turn on my computer. I had installed it with a live usb, and after doing so, everytime i would log in it would re direct me to that screen, which i cant have mainly because this is my school's laptop that they provided for engineering and i want to make sure everything atleast APPEARS to be the way it was when i first got it lol. With respect to removing it from the usb, i believe i just need to format it right?

But once again the most important part of my question is how do i remove the boot up menu i get which ask's me what do i want to boot with, my usb, or regular windows 7.. i need to get rid of it.

Thanks n much love

Formatting your hard disk should solve it.

It's called GRUB and google will answer you.