

The Night Light settings will be stored in the registry keys below for the current user. If your night light toggle is grayed out, you may need to update your display driver. This tutorial will show you how to turn on or off night light to reduce blue light for your account in Windows 10.ĭevices with DisplayLink or Basic Display Driver graphics drivers, or devices using HDR, do not support the night light feature.

Starting with Windows 10 build 15025, the night light color temperature range has been extended to go down to very red (1200 K) and the entire range of the slider now works correctly. Microsoft made some improvements to the night light feature that lets you preview the setting before applying it. Starting with Windows 10 build 15019, the "blue light" feature has been renamed to night light to make it more accurately reflect what the feature does. They also made some polish tweaks to Blue Light Settings with more coming soon.

Starting with Windows 10 build 15014, Microsoft has adjusted the animation when lowering blue light to be a bit smoother. Starting with Windows 10 build 15002, you can now turn on or off blue light reduction. To help you get to sleep, turn on night light and your display will show warmer colors at night that are easier on your eyes. Your display emits blue light-the kind of light you see during the day-which can keep you up at night. How to Turn On or Off Night Light in Windows 10
