1.From the START menu, select Run.
2.Type in CMD and press OK. This will open a DOS box.
3.Connect the USB memory stick to an available USB slot in the computer.
4.Select START > My Computer and locate the USB memory stick in the Devices with Removable Storage section. Note the drive that is assigned to the USB memory stick. In the example below , note that drive is (E).
5.Close this window and return to the DOS box.
For more instruction, please refer to the following link: