How To Fix Brightness Not Working In Windows 8.1

Note: This solution also worked in Windows 7, Windows 8, Windows Vista, Windows 8.1, and Windows 10.

Adjust screen brightness not working in Windows 8.1 is a most common error after upgrade Windows 8.1. If the above steps are not working for you, then please comment below. I will try my best to solve your problems. If you’re brightness not working in Windows 10, then follow below post.

Step 1:
Goto Windows Search and type “Device Manager” and click settings.

Now click Device Manager.

Step 2:
Find display adapters Open the Display adapters and extract it.

Step 3:
Right click on the graphics card and click “Update Driver Software“.

Step 4:
Now select “Browse my computer for driver software” manually.

Step 5:
Then from the list, select/choose “Microsoft Basic Display Adapter” and apply.