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How to Install the Windows 7 OS on a Portable Hard Drive

This article will explain on how to install the Windows 7 OS system on your portable hard drive. Open up Command Prompt as administrator by clicking the Windows Start button. Type in 'cmd', then right click cmd, click 'Run as...
Part 1 of 2:

Preparing for Installation

  1. How to Install the Windows 7 OS on a Portable Hard Drive Picture 1How to Install the Windows 7 OS on a Portable Hard Drive Picture 1
    Open up Command Prompt as administrator by clicking the Windows Start button. Type in 'cmd', then right click cmd, click 'Run as administrator' and enter the password if prompted.
  2. How to Install the Windows 7 OS on a Portable Hard Drive Picture 2How to Install the Windows 7 OS on a Portable Hard Drive Picture 2
    Type 'diskpart'.
  3. How to Install the Windows 7 OS on a Portable Hard Drive Picture 3How to Install the Windows 7 OS on a Portable Hard Drive Picture 3
    Type 'list disk'.
  4. How to Install the Windows 7 OS on a Portable Hard Drive Picture 4How to Install the Windows 7 OS on a Portable Hard Drive Picture 4
    Type 'select disk #' (replace # with your portable drive number). You can find which one it is by checking the size of its hard drive and matching it up with one on the list.
  5. How to Install the Windows 7 OS on a Portable Hard Drive Picture 5How to Install the Windows 7 OS on a Portable Hard Drive Picture 5
    Type 'clean'.
  6. How to Install the Windows 7 OS on a Portable Hard Drive Picture 6How to Install the Windows 7 OS on a Portable Hard Drive Picture 6
    Type 'create partition primary'.
  7. How to Install the Windows 7 OS on a Portable Hard Drive Picture 7How to Install the Windows 7 OS on a Portable Hard Drive Picture 7
    Type 'select partition 1'.
  8. How to Install the Windows 7 OS on a Portable Hard Drive Picture 8How to Install the Windows 7 OS on a Portable Hard Drive Picture 8
    Type 'active'.
  9. How to Install the Windows 7 OS on a Portable Hard Drive Picture 9How to Install the Windows 7 OS on a Portable Hard Drive Picture 9
    Type 'format fs=ntfs quick'.
  10. How to Install the Windows 7 OS on a Portable Hard Drive Picture 10How to Install the Windows 7 OS on a Portable Hard Drive Picture 10
    Type 'assign'.
  11. How to Install the Windows 7 OS on a Portable Hard Drive Picture 11How to Install the Windows 7 OS on a Portable Hard Drive Picture 11
    Exit out of Command Prompt.
Part 2 of 2:

Installing Windows

  1. How to Install the Windows 7 OS on a Portable Hard Drive Picture 12How to Install the Windows 7 OS on a Portable Hard Drive Picture 12
    Open Windows Easy Install. Extract it to your desktop or somewhere where you can find it.
  2. How to Install the Windows 7 OS on a Portable Hard Drive Picture 13How to Install the Windows 7 OS on a Portable Hard Drive Picture 13
    Open Windows Easy Install. Click on the folder Windows Easy Install, then folder NT6.x_fast_installer, then finally click on the folder Windows 7.
  3. How to Install the Windows 7 OS on a Portable Hard Drive Picture 14How to Install the Windows 7 OS on a Portable Hard Drive Picture 14
    Click on installer and run it as administrator. Enter the admin password if prompted. A green command window should open up. Press enter.
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    Wait for it to say "Please select the path of install.wim". Open your Windows 7 Installer USB or CD. When it is opened, click on sources.
  5. How to Install the Windows 7 OS on a Portable Hard Drive Picture 16How to Install the Windows 7 OS on a Portable Hard Drive Picture 16
    Find install.wim at the bottom. Click on it then open it. There should be a list of Windows 7 versions, select one.
  6. How to Install the Windows 7 OS on a Portable Hard Drive Picture 17How to Install the Windows 7 OS on a Portable Hard Drive Picture 17
    Enter the drive letter of the partition where you want to install Windows. Simply select your portable drive number.
  7. How to Install the Windows 7 OS on a Portable Hard Drive Picture 18How to Install the Windows 7 OS on a Portable Hard Drive Picture 18
    Enter the drive letter of your active primary partition. Enter your portable drive where you will be installing Windows' number
  8. How to Install the Windows 7 OS on a Portable Hard Drive Picture 19How to Install the Windows 7 OS on a Portable Hard Drive Picture 19
    Enter Y when it asks, "Is YOUR DRIVE NUMBER a USB hard disk?"
  9. How to Install the Windows 7 OS on a Portable Hard Drive Picture 20How to Install the Windows 7 OS on a Portable Hard Drive Picture 20
    Wait for it to tell you the information is collected. If you want to use another drive letter, put it in then press enter.
  10. How to Install the Windows 7 OS on a Portable Hard Drive Picture 21How to Install the Windows 7 OS on a Portable Hard Drive Picture 21
    Wait for the installation to complete. When it's done, boot it up from your portable drive.
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