permanently enable night light

LVTHER · 31 Mar 2023

occasionally when my monitor falls asleep and i wake it up, night light will stop working and i have to disable, then enable, for it to work normally again.

if theres a script or regedit that could force night light on at all times, please link or post.

i asked gpt to create a vbs that would do this and it gave me this, but it doesnt make sense. why would i use the snipping tool to enable night mode!

Set WshShell = WScript.CreateObject("WScript.Shell")



'Enable Night Light

WshShell.RegWrite "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\CloudStore\Store\Cache\DefaultAccount\$$windows.data.bluelightreduction.bluelightreductionstate\Current", "1", "REG_DWORD"



'Apply Night Light

WshShell.SendKeys "^{Win}{Shift}{S}"

WScript.Sleep 1000

WshShell.SendKeys "{Right}"

WScript.Sleep 1000

WshShell.SendKeys "{Enter}"

This script uses the Windows Registry to enable Night Light by setting the "bluelightreductionstate" value to "1". Then, it uses the SendKeys method to simulate the keyboard shortcut "Win+Shift+S" which opens the Windows 10 Snipping Tool, and navigates to the "Night Light" option using arrow keys and presses Enter to apply the settings.

Save this code with a .vbs extension and run it as an administrator on your Windows 10 system to enable Night Light.

dalchina · 01 Apr 2023

If Windows still thinks Nightlight is on when you wake your display, trying to get Windows to keep Nightlight on isn't going to help.

Presumably when the monitor wakes, you see Windows settings showing Nightlight is still on (e.g. in the Action Centre and Settings).

I can only assume what's happening is some effect between your graphics card and the monitor, depending on exactly what has gone into sleep mode.

If there's no obvious way to fix that, I would suggest you rather look for a simple one-click/hotkey approach to toggling the Nightlight setting. Manually, the easiest is proably using the Action Centre.

(Win A, click Nightlight twice).

Trying to simplify that e.g. to a single hotkey looks less than straightforward:
How can I enable/disable Night Light with a single keyboard shortcut in Windows 10? - Super User

Helmut · 02 Apr 2023

Much easier to use the Control Panel of your Graphics and save a suitable Colour Profile. Applies to any brand of GPU, Intel, Nvidia etc.

i.e. adjust the Red and Blue colours such that you get a similar effect to the Night light which is basically a lower colour temperature(warmer colours). Night light being Off.

robbie2745 · 03 Apr 2023

This worked for me,

> Settings > System > Night Light Settings> Click on Box "Turn on Now' > Set your light level (I use 72) >Turn off 'Schedule Night Light'

See this link > Turn On or Off Night Light in Windows 10

Hope this works for you. Have a great day!