When running Windows on a modern Apple computer, the screen may be very dim and adjusting the brightness doesn’t do anything.
For Windows 10 with the Anniversary Update
- Click on Start
- Go to Settings (left side of the start menu with a gear)
- Click on System
- Go to Display on the left hand menu
- Disable “Change brightness automatically when lighting changes”
For Windows 7 to Early Versions of Windows 10
- Right click on the battery icon in the taskbar (bottom right to the left of the clock)
- Click on Power Options
- Click “Change Plan Settings”
- Go to “Advanced Settings”
- In the Advanced Settings window, expand Display, then “Enable Adaptive Brightness”
- Change both “On battery” and “Plugged in” to “Off”
Why Does This Happen?
Apple does practically the bare-minimum when it comes to supporting their hardware on Windows. I can’t fully blame them, but some basic things do not work and really leads to a somewhat misleading experience. The driver for the brightness sensor in Macs simply does not work. Turning off adaptive brightness allows you to manually control the brightness of your machine.
I hope this saves someone some hair pulling!