Boot and Run DOS from a USB Flash Drive

How to Boot and Run DOS from a USB Flash Drive. In the following simple solution, I show you a simple way to Put DOS on a USB device using a nifty little tool called Rufus, created by Pete Batard. This tool resembles the HP USB Format Tool. It also includes the same features, and really makes it easy to Create a DOS Bootable USB Key.

Creating a DOS Bootable USB Flash Drive

  1. Download and start Rufus.
  2. (A) First choose your Flash Drive under Device.
    (B) Then select FAT32 for the File system.
    (C) Tick Create a DOS bootable disk.
    * You can choose WinMe DOS or FreeDOS.
    DOS ON USB - Rufus
  3. Click Start to make your DOS Bootable USB.
  4. Once finished, you’ll want to restart your PC. Then set your system BIOS or Boot Menu to boot from the USB drive. And then finally reboot again. Enjoy!