Create Bootable Thumb-Drive from windows(cmd)

win7boot.bat

$ diskpart
$ list disk

select disk 2                             # write your own disk number
clean                                     # this will delete disk's partitions 
create partition primary size=1000        # write disk size in MegaBytes)
select partition 1                        # select parition you just created
active                                    # set active partition
format fs=fat32 quick                     # quick format with fat32 file system (fat32/extFat/NTFS)
assign                                    # mount the disk
exit

# use this tool if you install a linux dist. 
# http://www.pendrivelinux.com/universal-usb-installer-easy-as-1-2-3/

xcopy g:\*.* /s/e/f h:\                   # copy all files and folder in g:\ drive to your new h:\ drive