Grub4dos it is a versatile bootloader capable of dual/multi-booting DOS, Windows, Linux and other operating systems. It can be used to select which operating system to load when multiple operating systems are available.Grub4Dos can be easily installed to your Hard Disk Using a tool called Bootice.

Kaspersky Rescue Disk 10 Bootable USB Creator prepares your USB Drive to boot Kaspersky Rescue Disk 10.This is a simple batch file which automates the steps given under the section Writing Kaspersky Rescue Disk to a removable drive in the help.chm file located in rescue\help\English folder in the Kaspersky Rescue disk 10.

LiveLinux USB Creator (formerly uSbuntu) is a free software for Windows that allows you to create a bootable Live USB key with a Linux on it.It supports many flavours and distros of Linux.The best thing about this software is that it offers an exclusive option of automatic virtualization using portable virtual box to directly run Linux in Windows without any configuration nor installation.

You can create a movie DVD containing a tiny bootable Linux Operating System-GeeXbox.This can play your movies,music on any computer irrespective of whether the computer has an installed operating system or not.
You just have to boot from the DVD media.

Just like how you can boot a computer using a bootable CD,you can also boot a computer using a bootable USB drive.
You can test a bootable USB Drive within Windows without restarting your computer.This is helpful when your motherboard does not support booting from a USB Drive.