Ms Dos Bootable Image

Many no longer even have optical disc drives. Fortunately, there’s a free third-party utility that lets you quickly create a DOS-bootable USB drive. Windows’ built-in formatting utility doesn’t allow you to select the “Create an MS-DOS startup disk” option when formatting a USB drive—the option is grayed out in Windows 7 and not available at all in Windows 8 and 10. Instead, we’ll be using a tool named Rufus. It’s a fast, free, lightweight application that includes FreeDOS. RELATED:What Is a "Portable" App, and Why Does It Matter? First, download Rufus and launch it. Rufus is a portable app that doesn’t require any installation—you will see the Rufus application as soon as you launch the downloaded .exe file. Creating a DOS-bootable USB drive in Rufus is simple. First, connect your USB drive to the computer and select it in the “Device” dropdown menu. Note that this process will erase the contents of your USB drive, so make sure you’ve backed up any important files on the USB drive first. RELATED:What's the Difference Between FAT32, exFAT, and NTFS? From the “File System” dropdown menu, choose the “FAT32” format. The DOS option requires FAT32 and isn’t available for the other file system options like NTFS, UDF, and exFAT. Select the “Create a bootable disk using” option and then choose “FreeDOS” from the dropdown menu next to that option. Click the “Start” button to format the disk and copy the files necessary to boot into FreeDOS. The formatting process should be extremely quick—usually a matter of seconds—but it can take longer depending on the size of your USB drive. You have probably created this boot drive because you have a DOS-based program to run, such as a BIOS update utility or another low-level system program. To actually run these files from DOS, you will need to copy them over to your newly-formatted USB drive. For example, you may have a BIOS.BIN and FLASHBIOS.BAT file you need to run in DOS. Copy these files into the root directory of the USB drive after formatting it. RELATED:How to Boot Your Computer From a Disc or USB Drive. You can now boot into DOS by restarting your computer with the USB drive connected. If your computer does not automatically boot from the USB drive, you may need to change your boot order or use a boot menu to select the device from which you want to boot. Once you are in DOS, you can run the program you copied to your USB drive by typing its name at the DOS prompt. Follow any instructions provided in the manufacturer’s documentation to run the application. RELATED:How To Use DOSBox To Run DOS Games and Old Apps. These utilities still use DOS to ensure they have low-level access to the hardware without any other programs interfering or Windows getting in the way. This helps ensure BIOS updates and other low-level operations work properly. You also could use a bootable USB drive to run old DOS applications, but that tends not to work so well. You would be much better off using DOSBOX to run old DOS games and other applications. READ NEXT› What is Firmware or Microcode, and How Can I Update My Hardware?› How to Create Bootable USB Drives and SD Cards For Every Operating System› Why Your PC’s UEFI Firmware Needs Security Updates› How to Check Your BIOS Version and Update it› Windows 3.1 Turns 30: Here’s How It Made Windows Essential› Stop Dropping Your Smartphone on Your Face› What Does “TIA” Mean, and How Do You Use It?› The 5 Most Bizarre Phones of All Time.
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