USB flash drives are commonly used for booting into Windows. When you boot from CDs, Blu-Ray disks, DVDs and USB drives permits you to do diagnostic tests on the system which is not able to boot from the hard drive. Here’s how to create a bootable USB drive in Windows 7 and Vista.

Steps for Creating Bootable USB Drive in Windows 7 and Vista

• Go to the elevated Windows command line menu by pressing on the Start option.

• Enter cmd in the search bar.

• Click on the Control +Shift + Enter keys together on the system keyboard.

• Access these keys by going to the Start, Accessories and All programs menu.

• You need to right-click with the system mouse on the Command prompt window.

• After that, choose the Run as Administrator option.

• Enter cd c:\windows\system32 by going to the command prompt window for changing the directory to the Windows System32 directory.

• Make sure that the USB flash drive is already connected.

• Enter DISKPART in the search box.

• Click on the Enter button.

• Enter List Disk in the search box.

• After that, tap on the Enter button.

• Now, you will get the list of the hard disk drives which is paired to the system.

• You need to search the Disk partition number of the USB flash drive.

• Enter SELECT DISK (USB disk #).

• Now, it will start indicating that the USB flash drive is the hard disk which you have chosen.

• In case you do not remember what hard disk is the USB flash drive, then safely remove the USB flash drive.

• Reconnect the USB flash drive.

• Start comparing the listed results.

• You need to enter the listed commands and do not forget to click on the Enter button after entering every command.

1. CLEAN

2. CREATE PARTITION PRIMARY

3. SELECT PARTITION 1

4. ACTIVE

5. FORMAT FS=NTFS

6. ASSIGN

7. EXIT

• You should have the Windows 7 or Vista installation CD.

• Place the CD in the system CD drive.

• Go to the My Computer option.

• Copy the hard drive number is provided to the CD drive.

• Return to the command prompt menu.

• Type in D: CD BOOT.

• After that, click on the Enter button.

• Re-enter CD BOOT.

• Tap on the Enter option.

• At last, enter BOOTSECT.EXE /NT60 H:

• Click on the Enter option.

• You have to start copying all the contents stored on the CD to the USB drive.

Source:- http://en-mcafee.com/how-to-create-bootable-usb-drive-in-windows-7-...

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