How to Create a Bootable USB Drive with DOS?

Even though, DOS is not widely used, for reading the instructions from manufacturers for updating BIOS, firmware updating applications, and other system tools, DOS is necessary. Most of the computer users does not have floppy disks to format it using MS DOS. Therefore, you need some external drives like USB drives to create a bootable drive with DOS. Even Windows does not allow you to select the “Create MS-DOS start up disk” option to format your USB drive. Hence, you have to download and install Rufus app.

Many lower level functions are available within DOS, which you can’t simply get to with full Windows. One of the essential things you need to do is using a bootable DOS USB is to update drivers or a bios. It is very easy to do and it is very useful for using many different applications too.

Follow below mentioned procedure in order to create a bootable USB drive with DOS:

Step 1: Plug in your USB drive to your computer and select it in the device box

Step 2: Next, make sure that you have enabled “Create a bootable disk using” check box and then ensure that you have selected FreeDOS

Step 3: Here, you need to click on Start button. After selecting the Start button, all the contents in the USB drive will be erased. You need to backup your important files from USB drive before starting the Start menu.


There is a default option, so that you do not have to configure Rufus at all.  This process is extremely very quick – It takes hardly five seconds on your computer

Next, you need to copy your files:

You might have created this boot drive because you have a DOS program to run like BIOS update application or the other low level system program. In order to run these files from DOS, you have to copy these files to your USB drive.


Boot into DOS:

By restarting your computer, you can boot now into DOS. If your system fails to boot from the USB drive, then you need to change the boot order. Once you are in DOS, the program copied to your USB drive can be executed by typing its name in the DOS prompt. You have to follow the instructions that are provided in the manufacturer’s site or documentation. Continue reading here, to know more details about how to create a bootable USB drive with DOS.