How do I make the display on my laptop brighter?
If you have a laptop, you might need to occasionally change the screen brightness. For example, if you want to use your laptop outdoors on a sunny day, you might need a brighter screen to see the display clearly. Or, if you're in a dark room, you might want to make the screen less bright.
To change the display brightness on a laptop
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Open Power Options by clicking the Start button 
, clicking Control Panel, clicking System and Security, and then clicking Power Options.
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Move the slider next to Screen brightness at the bottom of the screen. The brightness changes automatically.
Note
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If the Screen brightness slider isn't available, your laptop might not support brightness adjustment or you might need to update your display drivers. For more information, see Update drivers: recommended links.
To save power and make your battery last longer, Windows automatically dims the display after a certain amount of time. To change this setting, do the following:
To change when to dim the display on a laptop
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Open Power Options by clicking the Start button , clicking Control Panel, clicking System and Security, and then clicking Power Options.
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On the Select a power plan page, next to the plan that you want to change, click Change plan settings.
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On the Change settings for the plan page, next to Dim the display, change the time for On battery or Plugged in (or both), and then click Save changes.
