Hi Steve
My name is Andre Da Costa; an Independent Consultant, Windows Insider MVP and Windows & Devices for IT MVP. I'm here to help you with your problem.
If you are not seeing the log on controls, there might be a slight delay, wait about 5 to 10 minutes to see if they appear.
Open Start > Settings > Accounts > Sign in options
Click in the Require sign in list box
Choose 1 minute
Also - Open Start > Settings > Personalization > Lock screen
Scroll down, click Screen saver settings
Check - on resume, display log on screen
If those above steps are not successful...
Open Start, type: CMD
Right click CMD
Click Run as administrator
Type in at the prompt OR Copy and Paste these one at a time : (Hit enter after each)
Dism /Online /Cleanup-Image /CheckHealth
Dism /Online /Cleanup-Image /ScanHealth
Dism /Online /Cleanup-Image /RestoreHealth
Also run the System File Checker utility:
Open Start, type: CMD
Right click CMD
Click Run as administrator
At the Command Prompt, type: sfc/scannow
This will check for any integrity violations
Restart your system
Check your hard disk for any errors:
Click Start
Type: CMD, from the results, right click Command prompt
Click 'Run as Administrator'
At the Command Prompt, type: chkdsk /r /f
Hit Enter
When you restart your system, your computer will be scanned for errors and attempts will be made to correct them.