Microsoft Outlook has pushed a new update to Outlook that moves the "email, calendar, people" shortcut icons to the top left of the application. If you would like to move it back to the bottom left corner of Outlook, please make the following changes:
close outlook
right click start > run > regedit
navigate to HKEY_CURRENT_USER > Software > Microsoft > Office > 16.0 > Common > ExperimentEcs > Overrides
create string value named Microsoft.Office.Outlook.Hub.HubBar and set value to false
restart outlook
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