Do not regenerate meetings

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

Registry

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

Value name: disablemeetingregeneration

Enabled: disablemeetingregeneration = 1

Disabled: disablemeetingregeneration = 0

Description

By default, when a user accepts or tentatively accepts a meeting, Outlook creates a duplicate copy of the meeting with the new response status and a new entry ID. Outlook then deletes the old version of the meeting from the calendar. This setting allows you to roll back to the legacy behavior and prevent meeting regeneration.