Windows 10 Home Insider Preview Build 16232, The message only appears in the lock screen menu. I don't have Group Policy Editor.
To enable the lock screen.
1. Right click the Start button, Run or Press
the windows + R Keys (run)
2. Type regedit (press enter or click ok)
3. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Personalization
4. Change the value of NoLockScreen from 1 to 0 (zero)
5. Reboot PC to take affect
********************************************
This may be the best fix.
Open Registry Editor: Regedit
Went to HKLM\Software\Policies\Microsoft\Windows\Personalization then on the right side I deleted the Value: NoLockScreen then Restarted the computer.
Issue Resolved.
*********************************************
This is another fix if that didn't work
Try switching this OFF in the registry and it's now working [you have to sign out then in for it to take effect]
[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\PushNotifications]
"NoToastApplicationNotification"=dword:00000000
********************************************
For Windows 10 Home:
•Press Windows key and S key
•In the Search / Cortana box type command prompt
•Right-click on Command Prompt and select Run as administrator
•Click Yes when User Account Control prompts
•In the Administrator: Command Prompt window type or copy
& paste the following:
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DataCollection" /v AllowTelemetry /t REG_DWORD /d 1 /f
Close the Command window and restart computer
********************************************
checked that registry setting?
Via a command prompt simply type/copy & paste:
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DataCollection"
Press Enter key
If that results in displaying a Value name:
AllowTelemetry then in the command window:
REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DataCollection" /v AllowTelemetry
Press Enter key
Close the command window.
Reboot.
********************************************
Run Regedit
Go to HKLM\Software\Policies\Microsoft\Windows\Personalization
then on the right side delete the Value: NoLockScreen
then Restart the computer.