[After I've made bootable flashdisk & reboot notebook, It says: Code: The disk is invalid. Replace the disk and press any key. i'm using it frequently, check what's wrong in your procedure. and HPSET14A.EXE read slp is not a valid command, type only HPSET14A.EXE with no argument in a pure DOS environment (not windows cmd) note: Compaq 615 is supported by HPSET14A.EXE, open it with an hex editor and search "Compaq 615" you will find it