Policy

Configure NetBIOS settings

Windows 11 25H2

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Policy overview

Key metadata and intent for this policy.

ClassComputer
CategoryNetwork > DNS Client
Supported onAt least Windows Vista

Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista

Specifies if the DNS client will perform name resolution over NetBIOS. By default, the DNS client will disable NetBIOS name resolution on public networks for security reasons. To use this policy setting, click Enabled, and then select one of the following options from the drop-down list: Disable NetBIOS name resolution: Never allow NetBIOS name resolution. Allow NetBIOS name resolution: Always allow NetBIOS name resolution. Disable NetBIOS name resolution on public networks: Only allow NetBIOS name resolution on network adapters which are not connected to public networks. NetBIOS learning mode: Always allow NetBIOS name resolution and use it as a fallback after mDNS/LLMNR queries fail. If you disable this policy setting, or if you do not configure this policy setting, the DNS client will use locally configured settings.

Internal name
DNS_Netbios
Policy ID
38c2f614d6d4
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.

ElementTypeRegistry mappingConstraints & behavior
Configure NetBIOS options:
ID DNS_Netbios_Box
enum
HKLM\Software\Policies\Microsoft\Windows NT\DNSClient\EnableNetbios
Type REG_DWORD
Options: Disable NetBIOS name resolution (0), Allow NetBIOS name resolution (1), Disable NetBIOS name resolution on public networks (2), NetBIOS learning mode (3)

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