Microsoft Office Home and Business 2013 version 15.0.5267.1000, works perfectly with Windows 10 Version 1909 18363.1016, but fails when upgraded to Windows 10 Version 2004 19041.450. - - “Repair” does not resolve the problem. Adding the password is a cosmetic solution, Outlook simply doesn’t work because of this problem. The only solution is to restore a backup and not upgrade to 19041.