I tried it on my dell laptop and it gave me the error no boot device found. You may be wondering what if I format the flash and throw the contents of windows into the flash drive, will it work? No it wont. After you have finished copying the Windows operating system files to the root directory you can use the flash drive to repair your computer.
Now extract the contents of the iso image to the root of the flash drive. Now format the partition by typing “format fs=ntfs quick”.type “create part pri” this will create a new primary partition on the USB flash drive.
now type “select disk”, replace Y with the letter name of the flash drive.Here identify the drive number or letter. Next type “list disk” this displays all the disks that are connected to the computer.Type “diskpart” without quotes then press the return key.Right click and select run as administrator.
The following commands for windows work on windows 7, windows 8 and windows 10. You just need a computer running the windows operating system and an iso image that has the operating system. You would be much better off using DOSBOX to run old DOS games and other applications.How to create a bootable USB using command prompt 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. 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.
RELATED: How To Use DOSBox To Run DOS Games and Old Apps Follow any instructions provided in the manufacturer’s documentation to run the application. Once you are in DOS, you can run the program you copied to your USB drive by typing its name at the DOS prompt. 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. You can now boot into DOS by restarting your computer with the USB drive connected. RELATED: How to Boot Your Computer From a Disc or USB Drive Copy these files into the root directory of the USB drive after formatting it. For example, you may have a BIOS.BIN and FLASHBIOS.BAT file you need to run in DOS. To actually run these files from DOS, you will need to copy them over to your newly-formatted 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. 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. Select the “Create a bootable disk using” option and then choose “FreeDOS” from the dropdown menu next to that option.Ĭlick the “Start” button to format the disk and copy the files necessary to boot into FreeDOS. The DOS option requires FAT32 and isn’t available for the other file system options like NTFS, UDF, and exFAT. RELATED: What's the Difference Between FAT32, exFAT, and NTFS?įrom the “File System” dropdown menu, choose the “FAT32” format. 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. First, connect your USB drive to the computer and select it in the “Device” dropdown menu.
Creating a DOS-bootable USB drive in Rufus is simple.