How to Install Windows 7 Using Pen Drive

                 

Obtain a Windows 7 ISO file. This is an image file of the Windows 7 installation disc. You can either create this yourself or download an ISO file from various tech sites on the internet.


Download the Windows 7 USB/DVD Download Tool. This is a free program developed by Microsoft that will automatically format your USB drive and copy the ISO file onto it. You can download it from the Microsoft website, and it can be run on virtually any WIndows version.


Insert your USB device. When the installation files are copied onto the USB drive, any existing files on the drive will be deleted. Make sure that any important files are copied to a safe location. Your USB drive should be at least 4GB in size.


Run the Download Tool. You will be asked to specify an ISO file. Browse for the ISO file that you created or downloaded earlier.

Select your device. Click the "USB Device" button to choose a connected USB drive. You can also use this program to create a DVD installation disc if you desire.

• After clicking "USB Device", make sure the right USB drive is selected in the drop down menu. Click the "Refresh" button if it does not appear right away.                            

Click "Begin Copying". The USB drive will be formatted, and the ISO file will be copied onto the drive. The copying process will take several minutes.

Change the boot order. Now that the pen drive has been formatted and loaded up with the Windows files, it's ready to be used to install Windows 7. In order to boot from it though, you'll need to change the boot order on your computer to load the pen drive first. See this guide for details on entering the BIOS and adjusting settings.

Start installing Windows 7. After changing the boot order, you can boot from the pen drive and start the setup process. Most of the process is automated, but you will need to create partitions and set some options at the beginning. See this guide for the entire Windows 7 setup process step by step.

1. 

Insert pendrive in the usb port click on START>ALL PROGRAMS>ACCESSORIES>COMMAND PROMPT>(right click) RUN AS ADMINISTRATOR.

1. Enter the following commands in the MS DOS window.
   • DISKPART
     
   • LIST DISK 
     
2. 3
   In the list, find the disk number of your USB drive. Enter that number instead of red colored number in the following command. Here the disk number is shown as 1. (See image for detail)
• SELECT DISK 1
• CLEAN  
  
• CREATE PARTITION PRIMARY
  
• SELECT PARTITION ACTIVE (Using Win7 SELECT PARTITION=1 and then ACTIVE)
  
• FORMAT FS=NTFS (format process may take some time)
  
• ASSIGN 
  
• 
  
• EXIT
  

Don't close the command prompt now!

1. Insert the windows DVD in drive and see the letter of your DVD drive and USB drive in "my computer" window and use those letters instead of red colored letters in following commands.
   • D: CD BOOT (D is the drive letter of DVD drive)
     
   • CD BOOT
     
   • BOOTSECT.EXE/NT60 H: (H is the letter of pen drive)
     
2. 
   
3. Now exit command prompt and copy window DVD content on USB drive.Your pen drive is ready and you can boot windows with it but you need to change BIOS boot priority settings before starting installation.