tried to format my friends lap "hp probook 4520s" but i cannot make it boot using dvd or usb i changed the bios to boot from dvd or usb but no use it is running vista ultimate help mates thanks and regards
ensure that in bios these devices are in boot order and then move device to boot first and then press f10 to save changes
did as you mentioned mate but no use mate after exiting the bios saving the changes the lap restarts and when it comes to boot stage it doesnt boot the dvd or the usb but a screen flashes and boots the harddisk instead
The optical drive could be faulty or the boot media could be faulty, what are you using as boot media?