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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PST Null Data on Delete

This policy setting allows you to force Outlook to fully nullify deleted data in users’ Personal Folder files (.pst) at the time that the data is deleted.

If you enable this policy setting, data is immediately nullified in PST files when deleted.

If you disable or do not configure this policy setting, data remains in PST files until it is purged or overwritten by the user.

Registry Information

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

Registry File (.reg)

Windows Registry Editor Version 5.00

; Enable the policy
[HKEY_CURRENT_USERsoftwarepoliciesmicrosoftoffice16.0outlookpst]
"pstnullfreeondelete"=dword:00000001

; Disable the policy
[HKEY_CURRENT_USERsoftwarepoliciesmicrosoftoffice16.0outlookpst]
"pstnullfreeondelete"=dword:00000000

PowerShell

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

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