Prevent users from adding PSTs to Outlook profiles and/or prevent using Sharing-Exclusive PSTs: registry value disablepstUserHKCU\software\policies\microsoft\office\16.0\outlook
- Policy ID
- L_Preventusersfromaddingpsts
- Scope
- User Configuration
- Supported on
- At least Windows Server 2008 R2 or Windows 7
- Source
- Microsoft 365 Apps / Office Administrative Templates (version 5568.1000)
- Category
- Microsoft Outlook 2016 › Miscellaneous › PST Settings
Registry
disablepst
REG_DWORDUser- Enabled value
- Depends on the option value
- Element
- -
| Item | Stored value |
|---|---|
| (default) PSTs can be added | 0 |
| No PSTs can be added | 1 |
| Only Sharing-Exclusive PSTs can be added | 2 |
Apply with .reg · CMD · PowerShell
.reg
Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook] ; Options (use only one) ; (default) PSTs can be added "disablepst"=dword:00000000 ; No PSTs can be added "disablepst"=dword:00000001 ; Only Sharing-Exclusive PSTs can be added "disablepst"=dword:00000002
CMD
:: Options (use only one) :: (default) PSTs can be added reg add "HKCU\software\policies\microsoft\office\16.0\outlook" /v "disablepst" /t REG_DWORD /d 0 /f :: No PSTs can be added reg add "HKCU\software\policies\microsoft\office\16.0\outlook" /v "disablepst" /t REG_DWORD /d 1 /f :: Only Sharing-Exclusive PSTs can be added reg add "HKCU\software\policies\microsoft\office\16.0\outlook" /v "disablepst" /t REG_DWORD /d 2 /f
PowerShell
# Common: create the key New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook' -Force | Out-Null # Options (use only one) # (default) PSTs can be added New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook' -Name 'disablepst' -PropertyType DWord -Value 0 -Force | Out-Null # No PSTs can be added New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook' -Name 'disablepst' -PropertyType DWord -Value 1 -Force | Out-Null # Only Sharing-Exclusive PSTs can be added New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook' -Name 'disablepst' -PropertyType DWord -Value 2 -Force | Out-Null