Boot DOS from USB – RUFUS

Creating a Bootable USB flash drive to Boot DOS from USB can be complicated. However, a tool called Rufus or (Reliable USB Format Utility) created by Pete Batard, can make this task relatively simple. Rufus can also be used to create a Bootable USB version of a given distro from an ISO or image File. When first introduced, this software was similar in appearance and operation to the HP USB Format tool “HPUSBFW.exe”, and shared many of the same features. However, unlike the HP format tool, it is and always was Open Source.

NOTE: This post was originally written in 2011. Rufus has since evolved into a tool that can be used to format, create master boot records, and install an ISO or Image based distributions to USB. It now works much like the Universal USB Installer (UUI) which preceded it.

How to Boot DOS from USB using Rufus

How to Create a DOS Bootable USB Flash Drive that can be used to Run DOS from USB.

WARNING: The following instructions may be outdated as the program has changed.

Authors Website:

  1. Download and launch the program.
  2. (1) Select your USB Device from the drop down.
    (2) Choose the Fat32 filesystem.
    (3) Tick the option to Create a DOS bootable disk.
    Boot DOS From USB - Rufus
  3. Click the Start button to create the DOS Bootable Drive.
  4. Restart your PC, set your system BIOS to boot from the USB device, boot and enjoy!