Windows 11 Night light remains active when turned off

Tri 0 Reputation points
2026-11-04T16:49:22.4533333+00:00

Windows version: Windows 11 Laptop: Gigabyte AERO X16 (AMD integrated graphics + NVIDIA GPU) External monitor: AOC Q27G40XMN (connected via USB-C to DisplayPort) HDR: Enabled when using the external monitor (no HDR on laptop, using only "Show only [External Monitor]")

Problem:

My Windows 11 Night light feature remains active after its scheduled end time, even though the Night light toggle shows that it is off.

My Night light schedule is set to turn on at 9:00 PM and turn off at 7:00 AM. However, the warm color tint remains on well after 7:00 AM.

When this happens:

Turning Night light on or off does not remove the warm tint.

Changing the Strength slider changes the display's warmth regardless of whether Night light is enabled.

Restarting the graphics driver with Win + Ctrl + Shift + B does not resolve the issue.

  • Restarting the laptop temporarily fixes it, but the problem eventually returns when using night light again.

The issue has occurred on both my laptop's built-in display and my external HDR monitor.

Troubleshooting already attempted:

Toggling Night light on and off

Checking the Night light schedule

Restarting the graphics driver

Restarting the laptop

Questions:

Has anyone experienced Night light remaining active when Windows shows it as disabled?

  1. Could this be related to Windows 11 HDR handling or the AMD/NVIDIA graphics drivers?
  2. Is there a relation between using HDR on my external monitor and Night Light toggle failing?

Is there a way to reset Night light or its underlying settings without restarting the laptop?

  1. What permanent fix would prevent this from happening again?
Windows for home | Windows 11 | Display and graphics
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  1. AI answer

    2026-11-04T16:50:34.9433333+00:00

    Turn HDR off and back on for the external display to reset the Windows color pipeline without restarting the laptop; this resolved a closely matching Windows 11 case where the Night light state and Strength slider became inconsistent.^1^

    Immediate recovery without restarting

    Since toggling Night light, checking its schedule, and resetting the graphics driver have already failed:

    1. Open Settings → System → Display.
    2. Select the AOC external monitor at the top.
    3. Select HDR and turn HDR off.
    4. Wait until the display finishes renegotiating the signal and the screen returns.
    5. Confirm whether the warm tint has cleared.
    6. Turn HDR back on, then test Night light once.

    A brief black screen while HDR changes state is expected. Windows processes HDR through display-specific settings, and Microsoft documents that Night light can produce abnormal red-tinted coloring on HDR-capable displays.^2^

    If the problem returns reliably, leaving HDR off is the most practical workaround until a Windows or graphics-driver update resolves the state-management problem.

    There is no documented supported command in the available Microsoft guidance that resets only Night light’s internal state. Avoid registry “Night light reset” scripts unless the relevant keys and behavior are documented for your Windows build.

    Determine whether HDR is the trigger

    Run two controlled schedule cycles:

    • Cycle 1: External monitor selected, HDR off.
    • Cycle 2: External monitor selected, HDR on.

    If the tint becomes stuck only during Cycle 2, the fault is associated with the HDR display path. If it also returns on the non-HDR laptop display, HDR is not the sole trigger; the shared Windows/GPU color state is the more likely area to investigate.

    This behavior is compatible with an HDR/color-pipeline state problem, but the available sources do not establish an official universal AMD/NVIDIA bug. Night light is applied through WDDM gamma or color-matrix interfaces, so hybrid-GPU switching can participate in the path, while Windows is expected to preserve the same Night light level across GPU switches.^3^

    Durable remediation

    Because the laptop uses both AMD integrated graphics and NVIDIA discrete graphics, maintain both drivers rather than updating only the GPU believed to drive the USB-C port.

    1. Open Settings → Windows Update → Advanced options → Optional updates.
    2. Install any applicable AMD, NVIDIA, display, or monitor driver updates.
    3. Restart once after installation. Optional driver updates are not installed automatically.^4^
    4. If Windows Update offers nothing, install the display/chipset packages intended for the exact AERO X16 model from Gigabyte, then install the applicable NVIDIA package.

    If the issue began immediately after a particular graphics-driver update, use Device Manager → Display adapters → adapter → Properties → Driver → Roll Back Driver. Administrator rights are required, and the option is unavailable when Windows has no prior package.^5^

    If updating or rolling back does not help, a driver reinstall is the next fallback:

    1. Obtain the correct Gigabyte/AMD/NVIDIA packages first.
    2. In Device Manager → Display adapters, open the adapter’s Properties → Driver → Uninstall Device.
    3. Select Attempt to remove the driver for this device, if available.
    4. Restart and install the prepared driver package.
    5. Repeat for the other GPU only if the problem persists.

    Removing a driver can temporarily reduce resolution or display functionality, so do not remove both GPU drivers simultaneously.

    If it still reproduces

    Submit a Feedback Hub recording while reproducing the transition:

    1. Press Win+F.
    2. Choose Report a problem and describe that the Night light toggle reports off while Strength still changes the active color transform.
    3. Select Recreate my problem → Start recording.
    4. Reproduce the scheduled transition or HDR off/on behavior, stop recording, and submit the diagnostics.^6^

    Include the Windows build, AMD and NVIDIA driver versions, display connection, and whether the issue reproduces with HDR disabled. That distinction is the most useful evidence for separating HDR interaction from a general Night light or hybrid-GPU state defect.

    References

    1. Night Light not turning on - Microsoft Q&A
    2. HDR settings in Windows | Microsoft Support
    3. Automatic display switch
    4. Windows 11
    5. Windows 11
    6. Send feedback to Microsoft with the Feedback Hub app | Microsoft Support
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  2. Emma1-N 14,895 Reputation points Microsoft External Staff Moderator
    2026-11-05T00:20:27.58+00:00

    Welcome Tri,

    Thanks for reaching out to Microsoft Q&A Forum. I understand that Night light keeps the warm tint after its scheduled end time, even though the toggle shows it as off. The Strength slider still changes the display warmth, and only a full restart clears it until the problem returns.

    To help narrow this down, could you share:

    • Do you have any other color or eye-care features active? Examples include color settings in NVIDIA Control Panel or AMD Software, an eye-care or color mode in Gigabyte Control Center, or tools like f.lux.
    • Does the tint usually get stuck after the laptop wakes from sleep or hibernation, or while it stays awake through the 7:00 AM transition?

    Please make sure you already tried the Q&A Assist steps. In addition, please try the following:

    1, Reset the Night light settings stored in your user profile.

    • Turn off Night light, press Win + R, type regedit, and press Enter.
    • Go to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\CloudStore\Store\DefaultAccount and expand Cloud (or Current, depending on your build).
    • Right-click each key that starts with default$windows.data.bluelightreduction and select Export to save a backup.
    • Delete the bluelightreductionstate key and the bluelightreduction.settings key.
    • Sign out, sign back in, and set up the Night light schedule again.

    2, Clear a stuck tint without restarting.

    • Sign out of Windows and sign back in. Night light state is loaded per user session, so this may remove the tint faster than a full restart.

    3, Turn off Fast startup so a shutdown fully resets the display state, the same way a restart does.

    • Open Control Panel, then Power Options, then Choose what the power buttons do.
    • Select Change settings that are currently unavailable, uncheck Turn on fast startup, and select Save changes.

    4, Repair the Windows system files.

    • Open Terminal (Admin) and run DISM /Online /Cleanup-Image /RestoreHealth
    • When it finishes, run sfc /scannow and restart the laptop.

    Looking forward to your update.

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