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". Read more