my friend has been having trouble installing a new graphics card, it installs ok but the computer decides that he wants to use both graphics cards as dual view, he disabled the old graphics card in windows, but every time the computer restarts the old graphics card is reactivated, its an onboard graphics card. so I went round to his to try and sort it out and try and completely disable the onboard graphics card, so I went into bios, to my amazement there was no menu to switch the onboard graphics on or off, I'm guessing dell keep some menus hidden because they think nobody needs to upgrade there pc's lol.
my question is this how do I reveal hiden menus in bios?