i am sorry but i am tired of trying anything to boot from USB Stick and hard BT4 and BT3.
i tried all methods here plus using PendriveLinux Method .
The problem about Pendrivelinux that Qemu hangs while loading the hardwares.
Please note that i can boot from USB DVD-Rom but i cant boot from USB data storage. can anyone suggest me another method ! or why i cant boot it ! might be my LAPTOP problem.