SSPI authentication prompt is inaccessible from the keyboard in Outlook in Windows 10

Applies to: Outlook 2016Outlook 2013


Assume that you sign in to Microsoft Outlook 2016 or Outlook 2013 by using an account that doesn't use modern authentication in Windows 10. The Security Support Provider Interface (SSPI) authentication prompt sometimes appears behind other windows and is inaccessible from the keyboard.


Before applying this update, you have to install the following updates accordingly or make sure that Windows is up to date.