Ive been given an old fujitsu siemens laptop running xp its in good condition apart from the OS and disc drive. the bloke i got it off also gave me a usb with xp iso on it that he'd been given to by a shop and i was hoping that'd allow me to boot the laptop from the usb and run the xp installation image and use the key on the back to reinstall. yet... when i put the usb in it doesn't read it, unless i do it from within the operating system that is very unstable. i went into the boot menu in the bios and it didnt list usb option, except the internal hdd, floppy drive and cd-rom.