Policy
Mandate the minimum version of SMB
Microsoft Windows
Policy overview
Key metadata and intent for this policy.
Supported OS tags: Windows11, WindowsServer2025
This policy controls the minimum version of SMB protocol Note: This group policy does not prevent use of SMB 1 if that component is still installed and enabled.
Internal name
Pol_MinSmb2Dialect
Policy ID
b1afa42c6731
Elements
1
Registry values
How enabled and disabled states update the registry.
No explicit registry values are set for enabled or disabled states.
Policy elements
Inputs and configuration options exposed by this policy.
| Scope | Element | Type | Registry mapping | Constraints & behavior | Copy |
|---|---|---|---|---|---|
| Computer | Version: ID MinSmb2Dialect | enum | Path Software\Policies\Microsoft\Windows\LanmanWorkstation Value name MinSmb2Dialect Type REG_DWORD | Options: SMB 2.0.2 (514), SMB 2.1.0 (528), SMB 3.0.0 (768), SMB 3.0.2 (770), SMB 3.1.1 (785) |
Version:
Registry mapping
Path
Software\Policies\Microsoft\Windows\LanmanWorkstation
Value name
MinSmb2Dialect
Type
REG_DWORD
Details
Options: SMB 2.0.2 (514), SMB 2.1.0 (528), SMB 3.0.0 (768), SMB 3.0.2 (770), SMB 3.1.1 (785)