I have Acer E1-571G laptop with Windows 10. I was trying to follow the steps for automatic screen brightness like my MacBook from this website but it didn't work. I have no options for automatic screen brightness
On Website Display Settings
My Laptop's Display Settings
Best Answer
You may need to turn On the Enable adaptive brightness by following the below referenced instructions. Once this is enabled or turned on, you should then be presented with those options.
Additionally, you may be able to press the Fn+Left Arrow or Fn+Right Arrow to easily adjust the screen brightness otherwise. See Hotkeys And Key Combinations On Aspire One Netbooks.