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How to Install Windows 7 From a USB Drive

Windows 7 on usb

Installing Windows from a USB flash drive has several advantages – First of all, the overall speed of the installation process will increase significantly, carrying a USB stick is much more convenient than a DVD, and finally it becomes possible to install the OS even on those systems that do not have a DVD drive, such as a netbook.

In this post, I will show you how to load the Windows installation on to your USB flash drive and make it bootable just like the DVD.

Tools Required to Load Windows 7 Installation Files:

  1. USB flash drive with a minimum capacity of 4 GB.
  2. Windows 7 set-up DVD.

Now, just follow the steps below:

Step-1:

Plug-in your USB flash drive and backup all the existing data in it.

Open the command prompt. If you are using Windows 7/Vista then open it with administrator rights.

Go to Start -> All Programs -> Accessories -> Right-click on “Command Prompt” and select “Run as Administrator”.

Step-2:

In the command prompt, type in the following command:

DISKPART

This will start the Microsoft DiskPart utility as shown below:

Microsoft DiskPart

Step-3:

Now issue the following command:

LIST DISK

This will show you a list of  available disks on your system. Disk 0 is usually the hard disk. In my case, Disk 5 is the USB drive (this can be a different one in your case). Now issue the command as shown below:

SELECT DISK 5

Install Windows 7 from USB

NOTE: In the above command, 5 is the USB drive number on my system. If you have a different number on your system, then you need to replace 5 with that number.

Step-4:

Now issue the following list of commands one by one as shown below:

CLEAN
CREATE PARTITION PRIMARY
SELECT PARTITION 1
ACTIVE
FORMAT FS=NTFS QUICK
ASSIGN
EXIT

Install Windows 7 from USB

Minimize the command prompt and proceed to the next step.

Step 5:

Insert the Windows 7/Vista installation disc and note down the “drive letter” of your DVD drive. In my case, it is “H:”. Now type the following list of commands as shown below:

H: CD BOOT
CD BOOT
BOOTSECT.EXE /NT60 M: (NOTE: M: is your USB drive letter)
EXIT

Win 7 from USB flash drive

Step-6:

Copy the contents of your Windows 7/Vista installation disk into the USB flash drive.

That’s it! Your USB stick is now ready to boot and install the Windows 7 for you. Don’t forget to enable the “USB Boot” option and change the “boot priority to USB device from hard disk” in your BIOS settings.

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