How to Create a Bootable USB Drive with DOS?

There are many low-level functions within DOS that you simply can’t easily get to with full windows. One of the largest needs to use a bootable DOS USB is to update drivers or BIOS. It is very simple to do and will be useful for many different applications. Before starting to create a bootable DOS USB drive you need two materials like blank USB flash drive and Latest DLGDiag for DOS software from Western Digital (WD) support. By continue reading this article, you can come to know some basic steps to create a bootable USB drive with DOS in detail.

Create a bootable dos usb driveFirst you need to download the latest version of Rufus which is a third party tool that helps you to format and create a bootable USB drives with DOS. We have established this to be a feasible solution but there are various methods available for example you can utilize any installer you wish. Generally, WD offers limited support through this instruction for creating bootable USB flash drive. You have to contact Rufus or some other relevant third party utility in order to get any help for creating bootable USB flash drive with BIOS. Before doing format task you should aware about formatting operating will permanently erase all the data which are preciously stored in the USB flash drive from the USB flash drive. Actually, Windows system won’t let you to choose the “Create an MS-DOS startup drive” option while formatting a USB drive. So only we are using WD support Rufus software. Rufus is a fast and lightweight third party program that contains FreeDOS.

How to Create a Bootable DOS USB Drive Using Rufus Utility?

  • After downloading the Rufus program double-click to execute Rufus. It may ask for authorization to run. If so, click RUN.
  • Make sure the proper USB flash drive is chosen. The FreeDOS and default options are utilized in this step which should be in proper manner to create a bootable USB drive.
  • Click START. A caution about information being erased will be displayed. Then click OK if selected flash drive is safe to consist of all the vital data deleted from it.
  • Rufus software should take less time about thirty seconds to complete the execution. When Rufus execution is complete then click Close.
  • After downloading DLGDiag from Western Digital Support, double-click or extract to open the specific folder and just copy dlgdiag5.exe into the bootable USB drive.
  • Safely remove the bootable USB drive by right-clicking on the flash drive and selecting Eject or utilize the Safely Remove Hardware wizard.
  • You should confirm that the system is powered off and connect the USB drive that was created with above steps into USB port.
  • Do not connect the USB drive with the hub. Make sure it is connected directly to the system’s USB port.
  • After booting the computer system from the USB drive, you should come to a Windows Command Prompt (C:\) and type “dlgdiag5.exe” and press the Enter key to initiate the Rufus software.

Note: You may want to change the boot sequence in the system BIOS in order that it will easily boot from the USB drive. You have to contact the manufacturer or check your system documentation in order to know how to change the boot priority on the system.