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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Upgrade only the default store

This policy setting allows you to specify that only the default data file is upgraded on the first boot of Outlook.

If you enable this policy setting, only the data file associated with your delivery mailbox is upgraded.

If you disable or do not configure this policy setting, all Outlook Data Files are upgraded.

Registry Information

VendorMicrosoft
ProductMicrosoft Outlook 2016
CategoryMicrosoft Outlook 2016 › Miscellaneous › PST Settings
Applies toUser Configuration
Supported onWindows7
Registry Key[HKCU]softwarepoliciesmicrosoftoffice16.0outlooksetup
Value Nameupgradedefaultonly
TypeREG_DWORD
Enabled value1
Disabled value0

Registry File (.reg)

Windows Registry Editor Version 5.00

; Enable the policy
[HKEY_CURRENT_USERsoftwarepoliciesmicrosoftoffice16.0outlooksetup]
"upgradedefaultonly"=dword:00000001

; Disable the policy
[HKEY_CURRENT_USERsoftwarepoliciesmicrosoftoffice16.0outlooksetup]
"upgradedefaultonly"=dword:00000000

PowerShell

# Enable the policy
Set-ItemProperty -Path "HKCU:softwarepoliciesmicrosoftoffice16.0outlooksetup" -Name "upgradedefaultonly" -Value 1 -Type DWord

# Disable the policy
Set-ItemProperty -Path "HKCU:softwarepoliciesmicrosoftoffice16.0outlooksetup" -Name "upgradedefaultonly" -Value 0 -Type DWord