Finally, someone who has been there & done that. Thank you, thank you, thank you.
Bob Helms

Just finished installing the version "April 1803" update to Windows 10 PRO on another Lenovo laptop. It has the same problem.

Using administrator and regedit I changed the "HideLogonBackroundImage" value to '1' on my account SID. So then when I sign-in I get a solid blue screen (as it should). Now "Show lock screen...

I executed registry update , appears to have no results, see attached screen shot of target value after update was run. Ran as administrator.

Show Lock Screen is ON. However the registry values in the tutorial don't match up with what I have after 1803. No '0' or '1' to decide what happens in my registry. Just a string of characters...

Lenovo T530 laptop Windows 10 pro 1803 update. Update installed without any known problems. I cannot set the sign-in screen. Wasn't a problem until 1803 was installed. I have set the lock screen and...

Lenovo T530 with Windows 10 PRO, was running version 1709 (whether I wanted to or not).:mad: My task bar start button was broke. Repaired it several times with the re-install of windows programs from...