en-US windows user

Disable changing Calendar and Contact settings

Verified with Windows 11 25H2 — updated on July 23, 2026

Windows 11 25H2

Supported on: At least Internet Explorer 5.0. Not supported on Windows Vista

Path in the GPO console

User Configuration\Administrative Templates\Windows Components\Internet Explorer

Description

Prevents users from changing the default programs for managing schedules and contacts. If you enable this policy, the Calendar and Contact combo boxes appear dimmed in the Internet Programs area. To display these options, users open the Internet Options dialog box, and then click the Programs tab. If you disable this policy or do not configure it, users can determine which programs to use for managing schedules and contacts, if programs that perform these tasks are installed. This "Disable the Programs Page" policy (located in \User Configuration\Administrative Templates\Windows Components\Internet Explorer\Internet Control Panel) takes precedence over this policy. If it is enabled, this policy is ignored.

Registry

HKCU Software\Policies\Microsoft\Internet Explorer\Control Panel

Value name: CalendarContact

Export Builder

BETA

Configure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.

These exports write the registry — this is not a managed GPO.

.reg file

Windows Registry Editor Version 5.00

; Exported from gporais.com
; Policy: Disable changing Calendar and Contact settings
; State: Enabled
; Supported on: At least Internet Explorer 5.0. Not supported on Windows Vista

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Control Panel]
"CalendarContact"=dword:00000001
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Disable changing Calendar and Contact settings
# State: Enabled
# Supported on: At least Internet Explorer 5.0. Not supported on Windows Vista
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.

$path = 'HKCU:\Software\Policies\Microsoft\Internet Explorer\Control Panel'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'CalendarContact' -Value 1 -Type DWord

Building a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.

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