Windows 10: Night Light Levels and Blue Light Levels.

Yo, just wondering, if my night light level is at strength 100 will this remove all blue light, or is that not a possibility?

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:)

 

Lowering blue light

Hello ZippyDSMlee,

If you have at least the Windows 10 Insider build 15002 installed, you could manually adjust the blue light (aka: night light) level to what you want.

Night Light - Turn On or Off in Windows 10

 

No Night Light

Hi allisonb1

Try these steps

Option 1. Reset Night Light-related Settings on Windows 10 Fall Creators Update

If you find the night light in the Action Center or the Settings is greyed out after the Windows 10 Fall Creators Update, you can fix it with the steps below:

Step 1. Use Windows shortcut keys Win + i to open Settings.

Step 2. Go to the Privacy menu.

Step 3. On the left side, choose the Location tab.

Step 4. Click the Change button under the Location for this device.

Step 5. Toggle the switch under the Location for this device to ON.

Step 6. Toggle the switch under the Location service to ON.

Step 7. Restart the computer.

Now check the Action Center or the Settings on your Windows 10 Fall Creators Update to see if the night light feature is available.

Option 2 . Modify Registry to Fix Night Light Not Working on Windows 10 Fall Creators Update

If the methods above didn't work, you may need to modify the registry to fix the greyed-out night light button or the night light not working issue. Note: Windows Registry is a vital database on Windows OS computer. Any misoperation will cause server system
problems, such as 100% disk usage issue, blue screen issue, endless reboot, etc. So it's important to backup registry before the changes.

Now let's kill the night light not working and release the pain:

Step 1. Use Windows shortcut keys Win + R to launch Run.

Step 2. Type into regedit.

Step 3. Hit the Enter key.

Step 4. Copy and paste the path into the address bar of the Registry Editor: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\CloudStore\Store\Cache\DefaultAccount

Step 5. Press the Enter key.

Step 6. Right-click the key $$windows.data.bluelightreduction.bluelightreductionstate under the DefaultAccount and select the Delete to remove it.

Step 7. Right-click the key $$windows.data.bluelightreduction.settings and select the Delete.

Step 8. Restart the computer.

Then you can go to the Action Center or the Windows Settings. The night light not working issue has been resolved now and the night light button is available.

Source:

https://www.tenforums.com/tutorials/73518-turn-...

https://www.drivethelife.com/windows-10/night-l...

 

Blue light reduction

Hi ,Raymond

My name is Marc, thanks for participating in the Microsoft Community, I'm an Independent Advisor and I'll be glad to help you today.

Eliminate Blue Light with Windows 10 Night Light

1.Open the Start Menu.

2.Click the gear icon to bring up the Settings Menu.

3.Choose System.

4.Select Display.

5.Toggle the Night light switch to On.

6.Click Night light settings to adjust the level of blue displayed, or determine the time for Night Light to activate automatically.

Please let me know if you have something else that I can help you with, I'd be happy to help.

Regards,

Marc M.