My display hotkeys are not working; I can't adjust the brightness of my monitor, but the sound keys are working. However, I can't see the apps.
How can I adjust the brightness of my monitor without hotkeys?
If Windows 7 believes that it can control the brightness of the screen, you can find the control under Hardware & Sound > Power Options. At the very bottom of the window will be a brightness slider.
You can also find your way there by going to Appearance & Personalization > Display and clicking the Adjust brightness link on the left.
These controls and links might not appear if Windows doesn't think it can control the brightness of the display.