Hide the “Try the new Outlook” toggle in Outlook

Supported on: At least Windows Server 2008 R2 or Windows 7

Registry

HKCU software\policies\microsoft\office\16.0\outlook\options\general

Value name: hidenewoutlooktoggle

Enabled: hidenewoutlooktoggle = 1

Disabled: hidenewoutlooktoggle = 0

Description

This policy setting controls whether the “Try the new Outlook” toggle is displayed in Outlook. If you enable this policy setting, the toggle for “Try the new Outlook” will be hidden and users will not have the ability to switch between the existing and new Outlook experiences. If you disable or do not configure this policy setting, the toggle for “Try the new Outlook” will be displayed. Note: This policy only applies to subscription-based Microsoft 365 Apps.