How to Create a Bootable USB Device


Not all USB devices are created equal. The best way to create a bootable USB drive is to use a utility that writes the files to the device. You can not do this to an external USB hard drive, external hard drives take the same procedure that a normal hard drive does

To make a hard drive in an external usb enclosure bootable requires you to remove the drive and install it into a computer, this procedure is some what involved and will invalidate a warranty if it is a new device. Check the autoexec.bat and config.sys if you are loading any drivers, the path has to be C:\ because when you use the usb device to boot the computer it is the first drive that the BIOS will see