yes you can use Bootable Usb to reformat your PC NETBOOK MAC ETC.. NO IPHONE INLCLUDED AND OTHER SMARTPHONES and its way better than CD
U need a 1gb USB for XP, 4gb for Win7..
just search the net mate or google it for
Bootable OS Tutorial
P.S. Watch out what you are Downloading there are so many retards in the web that are inserting Massive Viruses in their Software that they upload..