It isn't always F10. While your computer is booting (before the Windows logo/welcome) it will flash a screen with the manufacturer name with "Press <KEY> to enter BiOS", usually along the bottom of the screen. Press the key while that screen is up. Depending on how fast your computer is this screen may go by too quick to react. If you miss the opportunity, shut it down and spam the key it said while it's booting. My BiOS key is DELETE on my ASUS P8P67 Pro.
ok so heres where it is !! i restored my pc last night after messing up the driver updates, later today im taking it to currys to get them to do it for me and also ill ask about the problem. My belief is that its something more to do with the update than my laptop. i could run beam ng on high settings before the update now its useless, i do think its not recognising my amd card (all posts above) but it was before the update, so im guessing untill a dev comments im not going to know why. + thanks to everyone that has helped me so far much appreciated !