salam to all. i have a notebook of asus with windows 7 geniune orignal. but the processor is atom so if i open huge data it stuks. so i want to install xp on it so anyone help me after formating drive and installing xp if sometime i want my geniune windows back how can i get it. someone help me to create some type of image or a software utility to get it back easily. remember that there is no cd drive on notbook. and second thing is that how can install xp without cd tell some torrent or adress of getting xp sp3 and tell how can i install it with the help of usb. specially senior members or coumputer experts help me and answer briefly.