I recently updated the OS on a Windows 10 Pro computer, running Office 2016. After this update, Outlook keeps unchecking the Use Auto-Complete to suggest names option after exiting Outlook.

When I recheck it to enable it, it works as it should. Sometimes when I exit and go back into it, it will remain checked, but usually not. I've scanned the computer, no bad software found.

Windows 10 Pro
Ver 1909
Build 18363.1500

Is there a registry edit I can do to keep this enabled? It was doing the same thing with the Save Sent e-mails in the Send folder, but I found a registry setting to keep that enabled. I cannot find where I can do this for the Auto Complete.

Any help will be very much appreciated. Thank you.

Kevin