adaptive brightness

Infopackets Reader Mary L. writes: " Dear Dennis, I just installed Windows 10 on my laptop, but I'm having a problem with the screen fading so dark I can hardly see it. I've tried adjusting the screen brightness manually on the laptop by pressing ... the FN (function) key + up arrow key, but the screen brightness won't say - it keeps going dark automatically on its own. The screen goes dim whether or not I have the laptop plugged into the power outlet, or if it's running on battery. It also seems to happen immediately as soon as I login to Windows. I have tried changing the Power Settings (via ... (view more)