Creating Bootable Windows Vista / Windows 7 Installation USB Flash Drive

Discussion in 'Windows 7' started by akritasge, Dec 6, 2009.

  1. akritasge

    akritasge MDL Member

    May 25, 2007
    This post refers to whom it may concern.


    *USB Flash Drive (4GB+)
    *Microsoft OS Disk (Vista / Windows 7)
    *A computer running Vista / Windows 7

    Step 1: Format the Drive
    The steps here are to use the command line to format the disk properly using the diskpart utility. [Be warned: this will erase everything on your drive.
    Be careful.]
    1.Plug in your USB Flash Drive directly to your machine. Not through a USB hub.
    2.Open a command prompt as administrator (Right click on
    Start > All Programs > Accessories > ommand Prompt and select "Run as administrator"
    3.Find the drive number of your USB Drive by typing the following into the Command Prompt

    list disk

    The number of your USB drive will listed. You'll need this for the next step. I'll assume that the
    USB flash drive is disk 1.
    4.Format the drive by typing the next instructions into the same window. Replace the number "1" with
    the number of your disk below.

    select disk 1
    create partition primary
    select partition 1
    format fs=NTFS

    When that is done you'll have a formatted USB flash drive ready to be made bootable.

    Step 2: Make the Drive Bootable
    Next we'll use the bootsect utility that comes on the Vista or Windows 7 disk to make the flash drive
    bootable. In the same command window that you were using in Step 1:
    1.Insert your Windows Vista / 7 DVD into your drive.
    2.Change directory to the DVD's boot directory where bootsect lives:

    cd d:\boot

    3.Use bootsect to set the USB as a bootable NTFS drive prepared for a Vista/7 image. I'm assuming
    that your USB flash drive has been labeled disk G:\ by the computer:

    bootsect /nt60 g:

    4.You can now close the command prompt window, we're done here.

    Step 3: Copy the installation DVD to the USB drive
    The easiest way is to use Windows explorer to copy all of the files on your DVD on to the formatted flash
    drive. After you've copied all of the files the disk you are ready to go.

    Step 4: Set your BIOS to boot from USB
    This is where you're on your own since every computer is different. Most BIOS's allow you to hit a key at
    boot and select a boot option.
  2. dumbo

    dumbo MDL Novice

    Sep 30, 2008
    Why do all of this lengthy procedure , u can get it working instantly with ultra iso , i used ultra iso :)

    1) Browse for image file
    2)click on bootable
    3)click write disk image
    4) click on write

    Done !!!
  3. Phazor

    Phazor MDL Expert

    Sep 1, 2009
    Not to mention Microsofts own tool specially designed for making USB Install-Sticks.

    The instructions posted here do work, its just that nobody has to do it like that anymore.
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  4. akritasge

    akritasge MDL Member

    May 25, 2007
    You are absolutely right. Moreover this post can be used for educational purposes for anyone who is interested.

    Thanks for responding.
  5. funnyguy

    funnyguy MDL Novice

    Feb 10, 2009
    The Micro$oft usb tool does not work with altered iso's but a work around can be used with the tool from Rafael Rivera at his withinwindows blog. I couldn't get the tool to work in Windows 7 x64 so I used Ultraiso.