I have a Maxtor Fireball 3 HDD with a clean install of XP on it.i now want to use the drive as a portable HDD but after i tested it in another system it fails to boot from the drive. the PC says drive read error. is there any way i can format it to make the drive usable once more be it external or internal. XP does not allow me to format it as it has system files. However it does boot up fine in my old computer which it was in before but this is useless to me!