Night light is a very useful feature in Windows 10/11.
Sometimes, for some reason, it cannot turn off normally.
This article inMiniToolwill show you what night light is and how to fix night light not turning off.

Windows considerately provides a feature named night light in the setting.
It can reduce the amount of blue light at night and display warmer colors.
How to Enable Windows Night Light?

When you return from hibernate, it also cannot be disabled and turns on automatically.
Whats wrong with that?
How to Fix Night Light Not Turning Off in Windows 10/11?
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Some of you may ask, how do I fix night light not turning off?
To do this:
Step 1.
TypeDevice Managerin the research bar and choose the most matched one.

ClickDisplay adaptersto check the graphics card.
How to check graphics card on Windows 10/8/7 PC or laptop?
5 methods are included in this article to help you find out the graphics card on Windows 10/8/7.

Right-opt for graphics card driver, and chooseUninstall equipment.
CheckAttempt to remove the driver for this deviceand finally click onUninstall.
At last, test whether the problem of night light not turning off is fixed.

Related Article How to Reinstall the Graphics Driver on Windows 10?
If you dont update yours in Windows 10/11 in time, verify to update the GPU driver properly.
The first two steps are the same as the steps in Way 1.

ChooseUpdate driverfrom the pop-up menu.
ClickSearch automatically for drivers.
In addition, you might give a shot to sign in or sign out of your account.

Click theStartmenu and then click theProfileorUser Accounticon.
Dont worry, you could sign in again.
Youd better check and modify it in time.

Enter theSettinginterface, selectTime & Language.
ClickDate & time, and ifSet time automaticallyis off, click onChange.
If not, turn it off and next clickChange.

Related article [3 Ways] How to Change Date and Time & Sleep Time on Windows 11?
Therefore, turning off the location service either fromAction CenterorWindows Setting Menuis a good option.
Enter theSettinginterface, choosePrivacy.
In this menu, clickLocation, and then clickChangeto disable Location for this unit.
Restart the computer and enableLocation for this rig.
ClickYeson the User Account Control prompt.
Paste the next path in the address bar and hitEnter.
Right-hit the same key in the next picture and selectDelete.
ClickYesin theConfirm Key Deletebox.
Use the same way to delete the following key.
$$windows.data.bluelightreduction.tweaks
Step 7. reset your machine to test whether you could turn off night light.