|This drive is in a housing/case with usb3 as the spec.?|
What model is the drive etc., and housing if the Toshiba drive was biught without a case/housing?
Does the unit have an integral (usually short) usb cable; or is it the more common type where you attach a cable to the unit and the other end to a usb2 or 3 port? If the separate cable type, have you tried another cable (ideally trying both usb2 and usb3 cables in turn.
Are the usb ports on the Vaio and the Asos usb3?