When you drag the slider upward brightness of your desktop enhances and when pull it downward brightness decreases. Set the gamma color settings by sliding up or down (as you prefer) the gamma sliders. Similarly, you get another window How to adjust gamma and click Next button to continue.Ħ. A new window called Set basic color settings appears on the screen. On Display Color Calibration window, click Next button at the bottom to proceed further.Ĥ. Write the text Calibrate display color in the Cortana search box and click the same on the Start Menu.ģ. Click Cortana search at the taskbar using the mouse.Ģ. Method 2: To Adjust Brightness and Contrast.ġ. If the issue persists follow next Method. Method 1: How to: Install and Update drivers in Windows 10 Updates are additions to software that can help prevent or fix problems, improve how your computer works, or enhance your computing experience. I suggest you to update Display drivers from the manufacturer website and check. This issue might occur if the drivers are not updated. Have you installed all pending Windows and Driver updates?

What is the make and model of your computer? I understand your concern and frustration you have been through.

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My computer screen is too dark to see