Outlook Updates
Outlook should be updated with the current Office/Outlook cumulative updates in order to successfully connect and work properly with Exchange 2019. Depending on your version of Outlook, you may need a service pack, cumulative update, security update or all of these. Before you create your Outlook profile, go to Microsoft Update and get the latest updates for Outlook.
Microsoft Update is accessed differently in different Windows versions. In recent versions of Windows 10, click the start button, then the settings button, which resembles a gear, then choose Update & Security.
To get updates for Outlook and Office, as well as Windows, click Advanced Options and turn on the option for, "Give me updates for other Microsoft products when I update Windows."
You may need to restart after installing updates and you may need to visit Windows Update multiple times. After installing updates, restart and go back to Windows Update again. Repeat until it confirms you're up to date.
