How to create a bootable USB fdisk

Written by ruri ranbe
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How to create a bootable USB fdisk
(usb connection image by jimcox40 from

To create or delete a partition on a hard disk without the use of a Windows operating system, you must use a bootable disk or USB drive with Fdisk installed. Fdisk is a DOS utility that allows users to configure the partitions on a hard disk. A bootable drive installed with this utility is particularly useful if you are unable to boot to your hard drive, such as due to a logical disk failure.

To make a bootable USB disk with Fdisk included, you must format the USB drive and install to it the contents of a Windows boot disk.

Skill level:


  1. 1

    Go to Locate your version in the list of Windows operating systems, then click the "Download Boot Disks" link.

  2. 2

    Click the arrow next to "Automatic Boot Disk" and download all of the files to an empty folder on your PC.

  3. 3

    Right-click "Start." Click "Explore." Open the folder containing the file or files you downloaded from the site. Double-click the file or files to extract the contents to a new folder. Click "OK."

  4. 4

    Click "Cancel" when the "Insert floppy to write" box appears.

  5. 5

    Download and install the HP USB Disk Storage Format Tool to your computer. Insert your USB drive into a free USB slot, then run the HP USB Disk Storage Format Tool.

  6. 6

    Select your USB device from the drop-down, then change the file system to "FAT32."

  7. 7

    Check "Quick Format," and "Create a DOS start-up disk." Click the "..." button and browse through your files until you find the folder containing the extracted files.

  8. 8

    Select the folder, then click "OK." Click "Start" to format the drive. Click "Yes" when the warning message appears.

Tips and warnings

  • Some boot disks come in two types: RAM drive or no RAM drive. If you are not sure whether or not your computer uses a RAM drive, download the no RAM drive file.
  • Not all computers can boot to USB. Check with your motherboard manufacturer prior to creating the bootable disk to confirm whether or not your BIOS can boot to USB.
  • Not all USB drives are bootable. Check your USB drive's documentation before attempting to use the drive as a bootable disk.
  • Formatting the USB drive will erase everything from the drive.

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