Disable changing Calendar and Contact settings: registry value CalendarContactUserHKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel
- Policy ID
- RestrictCalendarContact
- Scope
- User Configuration
- Supported on
- At least Internet Explorer 5.0. Not supported on Windows Vista
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- Windows Components › Internet Explorer