Windows 10: Night mode greyed out + Need some default Windows 10 registry keys

1. After updating windows to 1909, the night mode is disabled. Tries deleting couple of registry entries as suggested by answers.microsoft.com, still the problem persists. Is it due to company's policy or is it a bug?





2. By mistake I have deleted a couple of Registry Keys without backup.


Instead of deleting from HKCU, I deleted in HKLM.


Is there a way to get those 'default' key and values for those 2 keys alone? Is there any repository for us to check and extract?


The Keys deleted are from the location


Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\CloudStore\Schema


After deletion whenever I open Settings and try to open Night Mode, the Settings window crashes.

:)

 

Night Light option greyed out

The NIGHT LIGHT option is greyed out. Had tried various suggestions including edit the registry and restart. The option is still greyed out. Am using an ASUS UX331U with Nvidia Geforce. Would appreciate help to resolve this.

 

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...

 

Night Mode

Thanks for your suggestions.