In my case I am preparing bootable USB drive from DOS ISO. There are so many tools available to create bootable USB drive. Here I am going to cover two Simple to use & free tools to create bootable USB drive. So lets start,
ISO to USB is a free and small software that can burn the ISO image file directly to the USB drives, these USB drives include USB flash drives, memory sticks and other USB storage devices, it also supports to create a bootable USB disk with Windows operating systems.
Download ISO to USB & install it. ISO to USB is very simple to use. Open ISO to USB, provide ISO file location, Select USB drive & click on Burn as shown below.
UNetbootin allows you to create bootable Live USB drives for Ubuntu, Fedora, and other Linux distributions without burning a CD. It runs on Windows, Linux, and Mac OS X.
Download UNetbootin, UNetbootin is portable, after downloading open it. Select Diskimage option, Select ISO & provide path of the ISO image file, Select Drive type as USB Drive & select Drive Letter and click on OK as shown below.