Creating MultiBoot Flash Drive is really useful when you like to have many OS (Operating Systems) in your Pocket. well the ideology behind creating a MultiBoot Flash Drive is simple that is to carry all your favorite Operating Systems with you, and whenever you need. you all might be thinking why do I need this ? well the answer is pretty simple, you cannot carry the CD/DVD everytime you want to Boot or Format, well nowadays most of people use USB over CD/DVD because it is much more faster and reliable, you CD can get scratched or your CD/DVD ROM might get damaged and stop functioning, then you cannot use that CD of the Operating System. but every computer has many USB Ports at least 4 of them at the Back.