You just confused me there.
Right you go into the bios by pressing the Del, key. F1 key or F2 key when you first power the system on yes?
It shows the HD and the DVD drive as detected by the bios in its first main page yes.
But your saying in the boot order of devices in the bios it does not show them as listed so you can move the boot order of devices from Ie: 1, Hd 2.DVD writer drive to no one in the list to boot from. You see you sort of got me there because it looks like your pressing the F10,F11,or F12 key.
Normaly that just has to do with the selection of boot devices and dual OS`s running on say the laptop as a choice to boot another OS from another drive ect, or if two OS`s can be run/ launched. from the same drive as a choice Knowing windows boot manger pops up F10, F11, or F12 keys when pressed.