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Jump To: Support > KB > Windows > USBInstaller

Creating bootable USB drive to install Windows

  1. First find a big enough USB memory stick (min 8GB) and plug it in. Take a careful note of the drive letter (e.g. G: for this walkthrough) and its size (e.g. 8GB)
  2. Get the ISO image for the Windows operating system you want build an installer for
  3. Mount the ISO image (can be done directly on Windows 10, but on older operating systems, we recommend Pismo File Mount
  4. Take a careful note of the drive letter the ISO image is mounted on (with Pismo File Mount you can choose the letter). e.g. J: for this walkthrough:
  5. Open an elevated command prompt, by finding Command Prompt on your Start Menu, right-clicking on it and choosing Run as administrator
  6. Type diskpart, then list disk at the command prompt:
  7. Note the disk number of your USB drive, in the above example it is disk 2
  8. Type select disk followed by the disk number and then type list disk again:
  9. Double-check that the correct disk is selected with an asterisk
  10. Type the following as separate commands into diskpart:
    create partition primary
    select partition 1
    format fs=ntfs quick label=Installer

  11. Next, change to the drive letter of your mounted ISO image by typing the latter followed by colon (in this case J:) and then change to the boot subfolder with cd boot:
  12. Make the USB drive bootable by running bootsect /nt60 G: where G: is replaced by the drive letter of your USB drive:
  13. Copy all the Windows installer files onto the USB drive with xcopy by running xcopy J:\*.* G:\ /E /H /F. Replace J: by the drive that your ISO image is mounted on. Replace G: by the drive letter of your USB drive
  14. Wait quite a long time
  15. If you have extra drivers (e.g. for disk and RAID controllers) that you will need to install Windows, you can copy them onto the USB stick into a drivers folder
  16. Once completed you can eject the USB drive and your ISO image
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Page last modified on September 17, 2018, at 08:42 AM by sborrill