It usually comprises softwares or operating systems. ISO image files are basically fragmented files of CD which are compressed into a single module using certain softwares to make an ISO image file which usually comes with an. Method 2: Burn ISO Image to USB on Windows/Mac Using ISOGeeker.Method 1: Burn ISO to USB Drive using WinSetupFromUSB.Prior to burning an ISO image, it is very essentially important for you to know where you would exactly need it, for example if you wish to reset any locked account password using password recovery tools, or if you wish to create bootable disk to install your computer with a new operating system, burning of ISO image files will be required. Many people in spite of using computers for a long time, still not might be completely aware of burning ISO image files into a USB drive or CD/DVD.