Hash Publication for BranchCache: registry value HashPublicationForPeerCachingComputerHKLM\Software\Policies\Microsoft\Windows\LanmanServer
- Policy ID
- Pol_HashPublication
- Scope
- Computer Configuration
- Supported on
- At least Windows Server 2008 R2 or Windows 7
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- Network › Lanman Server
Registry
HashPublicationForPeerCaching
REG_DWORDComputer- Enabled value
- Depends on the option value
- Element
- Hash publication actions:
| Item | Stored value |
|---|---|
| Allow hash publication only for shared folders on which BranchCache is enabled | 0 |
| Disallow hash publication on all shared folders | 1 |
| Allow hash publication for all shared folders | 2 |
Apply with .reg · CMD · PowerShell
.reg
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\LanmanServer] ; Options (use only one) ; Allow hash publication only for shared folders on which BranchCache is enabled "HashPublicationForPeerCaching"=dword:00000000 ; Disallow hash publication on all shared folders "HashPublicationForPeerCaching"=dword:00000001 ; Allow hash publication for all shared folders "HashPublicationForPeerCaching"=dword:00000002
CMD
:: Options (use only one) :: Allow hash publication only for shared folders on which BranchCache is enabled reg add "HKLM\Software\Policies\Microsoft\Windows\LanmanServer" /v "HashPublicationForPeerCaching" /t REG_DWORD /d 0 /f :: Disallow hash publication on all shared folders reg add "HKLM\Software\Policies\Microsoft\Windows\LanmanServer" /v "HashPublicationForPeerCaching" /t REG_DWORD /d 1 /f :: Allow hash publication for all shared folders reg add "HKLM\Software\Policies\Microsoft\Windows\LanmanServer" /v "HashPublicationForPeerCaching" /t REG_DWORD /d 2 /f
PowerShell
# Common: create the key New-Item -Path 'HKLM:\Software\Policies\Microsoft\Windows\LanmanServer' -Force | Out-Null # Options (use only one) # Allow hash publication only for shared folders on which BranchCache is enabled New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\LanmanServer' -Name 'HashPublicationForPeerCaching' -PropertyType DWord -Value 0 -Force | Out-Null # Disallow hash publication on all shared folders New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\LanmanServer' -Name 'HashPublicationForPeerCaching' -PropertyType DWord -Value 1 -Force | Out-Null # Allow hash publication for all shared folders New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\LanmanServer' -Name 'HashPublicationForPeerCaching' -PropertyType DWord -Value 2 -Force | Out-Null