Create a USB Boot Disk for
If you want to create a USB boot disk for Windows 7, make sure that you backup the files that you have saved on the USB flash drive that you will use. You would need to reformat the drive and all of the files on it will be lost. Also check the BIOS to find out whether your computer is capable of booting from a USB flash drive.Now we can use the tool Diskpart brought by Windows 7 self.You will found it's very easy to create such a USB boot disk.
1.The USB flash drive must have more than 4 GB of available space on it.Click the "Start" button on the taskbar and select the option "All Programs" from the menu list. Select "Accessories" and scroll down the list until you see "Command Prompt" and right-click on it. Click on "Run as Administrator".
2.Type the command "DISKPART," and press the "Enter" key . You will see the message "DISKPART." Next, type the command "LIST DISK" and view the Disk number for the USB flash drive.Usually the USB flash drive is disk one.
3.Type the following commands and press the "Enter" key after each command. If the Disk number for your USB flash drive is Disk one use that number.
SELECT DISK 1
CREATE PARTITION PRIMARY
SELECT PARTITION 1
4.Minimize the Command Prompt window.Insert your Windows 7 installation DVD disk into your CD/DVD drive. Check the drive letters of your DVD drive and the USB flash drive. Double-click "My Computer" on your desktop and write down the drive letters.Maximize the Command Prompt window and type the command, "X: CD BOOT" and press the "Enter" key. ("X" should be your CD/DVD drive letter).
5.Type the command "BOOTSECT.EXE /NT60 X:" to update the USB drive flash with BOOTMGR compatible code. ( "X" should be your USB flash drive) Copy all of the files on the Windows 7 installation disk to the USB flash drive. Close the Command Prompt window. Remove the disk from your CD/DVD drive and restart your computer.
6.Press the "F2" or "Delete" key to enter the BIOS. Change the first boot sequence to USB Boot first,then your computer will boot from the USB flash drive. Press the "F10" to save your settings and exist BIOS.Now you have created a USB boot disk.Windows 7 can boot from usb disk.
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