This document provides 5 methods for booting a computer from a USB flash drive. Method 1 involves using the mkbt utility to copy a boot sector from a bootable floppy disk to the flash drive. Method 2 uses HP USB flash drive formatting and boot utilities. Method 3 links to third party guides. Method 4 suggests using Windows formatting options to enable copying system files. Method 5 recommends using a virtual floppy driver image or virtual machine image to make the flash drive bootable without special utilities.