How to Change Screen Brightness in Windows 10
How to Increase or Decrease Brightness on Windows 10
Select action center on the right side of the taskbar, and then move the Brightness slider to adjust the brightness.
Some PCs can let Windows automatically adjust screen brightness based on the current lighting conditions. To find out if your PC supports this, go to Settings ⮞ System ⮞ Display. Under Brightness and color, look for the Change brightness automatically when lighting changes check box, and then select it to use this feature. This automatic setting helps make sure your screen is readable wherever you go. Even if you use it, you can still move the Change brightness for the built-in display slider to fine-tune the brightness level.
Notes:
• You might not see the Change brightness for the built-in display slider on desktop PCs that have an external monitor. To change the brightness on an external monitor, use the buttons on it.
• The Brightness slider appears in action center in Windows 10, version 1903. To find the brightness slider in earlier versions of Windows 10, select Settings ⮞ System ⮞ Display, and then move the Change brightness slider to adjust the brightness.
• If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver. In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results. In Device Manager, select Display adapters, then select the display adapter. Press and hold (or right-click) the display adapter name, then select Update driver and follow the instructions.
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