Hey people! I have a litle brother, and almost every month he manages to destroy/infect his pc. So I thinked in a solution for it, but I have no ideia how to do this, so that's the why. The what: I have used backtrack, and I noticed how I could use the DVD to boot my laptop, and after I was done, if I reboot it all the changes/modifications were gone and it was all "new and clean" again on each boot. So I was thinking, if it was possible to make a USB (or if not a DVD instead..) of a windows 8 (or if not win7) add it some extra apps like antivirus office and stuff.. And then use it to boot each time he uses the computer, and everytime he shut's down the computer all the changes were gone.. The OS would be in the USB/DVD and the computer's hd would be used as storage for files like a usb pen drive. So no matter what he does or all the damage he makes, when he uses the computer, each time in the next boot it will be all "new and clean" again. How can I make such a "thing" ?