Problems with USB DVD Download tool unusable

Win key +r start out the "Run" dialog box, type cmd, start the command prompt. Enter DiskPart and start the DiskPart tool.

Enter the following command in the DiskPart window:

>list disks (This command lists all disk drives, please be sure to see the number on the front of your USB drive, for example, 1)

>select Disk # (#是上一步中所显示的U盘编号数字, do not write hard disk number)

>clean

Start creating the primary partition for the U disk, and enter and activate the primary partition:

>create Partition Primary

>select partition 1

>active

Fast initialization u disk for FAT32 format, and reload U disk, and then exit DiskPart;

Finally, reuse the Windows 7 USB DVD Download tool.