GPO tool

Group Policy made searchable

A free ADMX browser or comparison tool for IT administrators.Search policies, find registry keys, and see exactly what each setting writes to the Windows Registry. Or compare two GPO backups to see exactly what has changed between them.

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Make Outlook the default program for E-mail, Contacts, and Calendar

This policy setting controls whether Outlook is the default program for e-mail, contacts, and calendar services.

If you enable this policy setting, the "Make Outlook the default program for E-mail, Contacts, and Calendar" check box on the General tab of the Office Center is selected and users cannot change it.

If you disable this policy setting, users cannot make Outlook the default program for these services.

If you do not configure this policy setting, Outlook is made the default program for e-mail, contacts, and calendar services when it is installed, although users can designate other programs as the default programs for these services.

Registry Information

VendorMicrosoft
ProductMicrosoft Outlook 2016
CategoryMicrosoft Outlook 2016 › Outlook Options › Other
Applies toUser Configuration
Supported onWindows7
Registry Key[HKCU]softwarepoliciesmicrosoftoffice16.0outlookoptionsgeneral
Value Namecheck default client
TypeREG_DWORD
Enabled value1
Disabled value0

Registry File (.reg)

Windows Registry Editor Version 5.00

; Enable the policy
[HKEY_CURRENT_USERsoftwarepoliciesmicrosoftoffice16.0outlookoptionsgeneral]
"check default client"=dword:00000001

; Disable the policy
[HKEY_CURRENT_USERsoftwarepoliciesmicrosoftoffice16.0outlookoptionsgeneral]
"check default client"=dword:00000000

PowerShell

# Enable the policy
Set-ItemProperty -Path "HKCU:softwarepoliciesmicrosoftoffice16.0outlookoptionsgeneral" -Name "check default client" -Value 1 -Type DWord

# Disable the policy
Set-ItemProperty -Path "HKCU:softwarepoliciesmicrosoftoffice16.0outlookoptionsgeneral" -Name "check default client" -Value 0 -Type DWord