How to make USB bootable disk

1. boot WINPE 2.1 cd. stop running script

2. insert USB memory disk

3. from command prompt key:

diskpart
list disk

4. indentify which disk no is the USB disk, type the follow:

select disk # (#=1,2,3 or...)
clean
create partition primary
select parttition 1
active
format fs=fat32 quick label=test1
assign
exit

5. copy content from CD to USB memory disk