Tips: Fine-Tuning Your Screen Brightness on Windows 7. If your computer is on a power-saving mode, you might notice the screen dims automatically. This helps save energy when the computer is not in active use. You can create custom power plans that automatically adjust the screen brightness depending on your activities.. Step 1: Click the Power icon on Windows 7 and select Adjust screen brightness. How to adjust the screen brightness of Windows 7 on computers and laptops Picture 3. Step 2: Here will appear Power Options window . Adjust the brightness via the Screen Brightness bar at the bottom.
If you're using Windows 7 or 8, and don't have a Settings app, this option available in the Control Panel. Open the Control Panel, select "Hardware and Sound," and select "Power Options." You'll see a "Screen brightness" slider at the bottom of the Power Plans window.. Click and drag the "Screen Brightness" slider left or right. This slider is at the bottom of the window. Dragging it left will reduce your laptop's screen brightness, while dragging it right will increase the brightness.