When you’re exposed to blue light at night, it tricks your brain into thinking it’s daytime. This disrupts your body’s natural sleep cycle and makes it harder for you to fall asleep. So, the Windows night light feature works by decreasing the emission of blue light from your display.
This feature is quite convenient when you want to use your computer at night. It lessens the strain on your eyes and also doesn’t disrupt your natural sleep cycle. However, the Windows night light feature can sometimes stop working due to various reasons like misconfigured settings, problematic drivers, or bugs and glitches.
In such cases, you may try out a variety of fixes to solve the issue of your Windows night light feature not working.
Check Night Light Strength
A pretty simple reason why your Windows night light is not working might be due to low night light strength. If you perceive only slight or no difference after enabling night light, you should check to make sure that the night light strength is set to an appropriate level.
Check Night Light Schedule
If your night light is not working according to the time you’ve set, you should check out your night schedule in settings. Other factors also affect your night light schedule settings, and you should have them all configured properly for your night light schedule to work.
Manually Reinstall Graphics Drivers
Your Windows night light might also not work if your graphics driver is corrupted or outdated. So, to fix issues like this, you may try manuallyreinstalling your graphics driver, which will also update it to the latest version available.
Enable or Reinstall Monitor Driver
If your monitor driver is disabled or corrupted, you also will not be able to use the Windows night light feature. The monitor driver provides monitor configuration information to the system, so it is essential for the night light feature to work.
You can check to make sure the monitor driver is enabled, and also locallyreinstall itto fix issues like corruption.
After your system restarts, it will detect the missing driver and reinstall it automatically.
Reset Night Light Settings From Registry Editor
If the above methods do not work, you can try resetting your night light settings from Registry. This will clear all of your night light configurations and registry entries, and revert them to default configuration.
Update Windows
Lastly, you may tryupdating your Windowsto ensure it is not a bug with your version of Windows. It is always recommended to periodically update your Windows, as it makes your system more secure and keeps things from breaking.
Additionally, Windows update will also automatically update your monitor drivers if an update is available.
