How to Fix Night Light Not Working in Windows 11 – Guide

Windows 11 has a ‘Night Light’ feature which helps to reduce blue light by using warm colors on the screen to reduce eye strain and improve sleep quality at night. This feature is better for low light or dark environments when using your Windows 11 computer for a while. If in case Windows 11 Night Light is not working for you then try following this guide.

While this is a great feature, it’s still hit or miss even on Windows 11 - sometimes it doesn’t work or just won’t turn on. At the same time, some users also report that even if it is enabled, the warm tone doesn’t automatically apply. Yea! Sometimes this needs to be turned on/off manually or dragging the warm tone slider can get the job done. ..

How to Fix Night Light Not Working in Windows 11

Make sure to enable night light in Windows 11

To enable night light in windows 11, open the Control Panel and click on the “Window’s Status” tab. Under “Lighting,” you will see a checkbox next to “Night Light.” If you check the box, then Night Light will be enabled in windows 11. If you don’t check the box, then Night Light will not be enabled in windows 11.

Press the Windows key and then press the I key to open the Settings window.

In the View on the right side pane, select System.

To adjust the brightness and color of your computer’s night light, open the Brightness and Color section in the new window, and toggle the switch next to Night Light. ..

To avoid the Night Light feature from starting or stopping automatically, you can click on the Night Light heading to expand the advanced settings.

To turn on Night Light Windows 11, first turn on the switch next to Schedule Night Light and select Set Times. Then use the On and Off options to set a period when you want to use Night Light Windows 11 automatically. ..

Windows 11 Night Light not working? Try restarting your computer and checking if the Night Light is working again.

Change the date and time

Windows 11 Night Light not working issue: According to research, incorrect date and time settings can trigger the issue. Therefore, we recommend that you check the date and time on your PC.

Select Time and Language and click Date and Time in the right pane to change the time zone.

To automatically set your time and date, turn on the switches next to Set time automatically and Set time zone automatically. This will ensure that your computer sets the correct time and date, regardless of where you are in the world. ..

Scroll down to the Additional Settings section and click Sync Now. Then your system date and time will be synced automatically.

Turn on location services

If you want to disable Night Light in Windows 11, you can follow these steps:

  1. Open the Control Panel.
  2. Click on the System and Security category.
  3. Click on the Night Light option under System and Security.
  4. Under the Night Light settings, uncheck the box next to Enable night light automatically at sunset and sunrise. ..

In the Privacy & Security window, select Location on the left side and scroll down in the right sidebar to App Permissions.

To turn on Location Services, locate the switch next to the screen’s upper-left corner and toggle it on. ..

Reinstall the graphics card driver

Windows 11 Slow Startup and Valorant FPS Drops

The Windows Management Instrumentation (WMI) tool can be used to manage the Windows system. The WMI tool can be used to view and change the settings for the Windows system.

Uninstall the graphics card driver from your computer.

In the pop-up window, select the check box next to Attempt to remove the driver for this device and click Uninstall.

Windows 11 will automatically re-install the default graphics card driver if your computer is not currently using a specific graphics card.

Disable and re-enable HDR Feature

If you’re having trouble getting Windows 11 Night Light to work when you wake up your computer from sleep, it might be because of the HDR feature. Here are some steps you can take to try and fix the problem. ..

In the Display window, you can adjust the settings for your computer’s display. ..

If the problem is still occurring, turn HDR on to see if there is a difference.

Change Night Light Settings in Registry Editor

To reset the night light feature in your device, follow these steps:

  1. Open Registry Editor.
  2. Navigate to the following key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
  3. Scroll down and find the following value: “LOW_POWERED_MODE”
  4. Change it to “HIGH_POWERED_MODE”.
  5. Save the changes.

In the Registry Editor, open the following registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon and add the following value: “Registry Value” = “HKCU.local\Software\Microsoft\Windows NT\CurrentVersion\Winlogon”

  1. Click on the “Settings” link in the left navigation bar.
  2. Under “General,” click on the “Security” link.
  3. Under “Security,” click on the “Firewall” link.
  4. In the Firewall window, locate and click on the “Port Forwarding” tab.
  1. Click on the Settings link in the left navigation bar and then under General, click on Security.
  2. Under Security, click on Firewall and then locate and click on Port Forwarding tab. 3) In the Port Forwarding window, under Protocols, select TCP and then enter 25000 in both of the boxes next to it (the port number will be different depending upon your router). 4) Click OK to save your changes and close out of the Firewall window. ..

Right-click the folder with the following name and select Delete.

If you have a light sensor on your computer, restarting may fix the problem. If you don’t have a light sensor, try turning off all of your lights and then turning them back on. ..

Reset Windows 11

If none of the above solutions work, you may need to reset your computer. Resetting your computer will reinstall all features and settings, including Night Light. If you don’t know how to reset your computer, this guide will walk you through detailed steps. ..

Final note

If you’re having trouble getting your computer’s night light to work in Windows 10 or Windows 11, this guide will help. ..