I've tried adjusting the power plan, enabling adaptive brightness via the power settings as mentioned by someone else with the same issue on a Microsoft support forum but that didn't fix it. I've looked up the issue elsewhere online and read a number of potential fixes which haven't worked, including adjusting the brightness via 'brightness' within the 'settings' section of the charm bar (I think thats what its called?).
I can move it via my mouse cursor, by clicking and dragging but if I do that, the actual brightness of my screen doesn't change at all. Since Monday, I've been unable to adjust the brightness on my laptop screen via the F2 and F3 buttons - the correct brightness slider appears visually on screen but pressing the buttons no longer makes the slider move up or down.
