This is a common problem when you see an error, Some Settings Are Hidden Or Managed By Your Organization in Windows 10 at lock screen. When you want to change the lock screen settings you get this error and can' personalize the Windows 10 lock screen.

The fix depends on whether you are using Windows 10 Home or Pro.

Windows 10 Pro -
1. Search for gpedit and open the app.
2. Navigate to Administrative template - Windows Component- Data collection and preview buils

Allow Telemetry.

3. Administrative template - Control panel - Personalization

Enable - Do not display lock screen and change to Not configure

4. Open cmd and type
gpupdate /force

Windows 10 Home -

1. Open regedit
2. HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows

Create a new key "Personalization "
Create a key NoLockScreen and set value to 0

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