Windows 8.1 cant change brightness
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Solved by RegularRlofe,
1) Download the latest driver here: http://www.geforce.com/drivers and perform a clean install.
2) After, check if "Enable adaptive brightness" option is enabled and if yes try turning it off to see if that will help. This option is located under the Windows 8 power options. You can access it via the Windows control panel > Power Options > Change plan settings (which ever plan is active) > Change advanced power settings > Display > Enable Adaptive Brightness.
3) Check if you are able to change your brightness.
Hope this helps
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