Primary DNS suffix: registry value NV PrimaryDnsSuffixComputerHKLM\Software\Policies\Microsoft\System\DNSClient

Policy ID: DNS_PrimaryDnsSuffix
Scope: Computer Configuration
Supported on: At least Windows 2000
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: Network › DNS Client

Registry

NV PrimaryDnsSuffix

REG_SZComputer

HKLM\Software\Policies\Microsoft\System\DNSClient Current key

Enabled value: Depends on the option value
Element: Enter a primary DNS suffix:
Value type: REG_SZ

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\System\DNSClient]

; Value names and types follow the ADMX. Replace <enter value> below with your own data
"NV PrimaryDnsSuffix"="<enter value>"

CMD

:: Value names and types follow the ADMX. Replace <enter value> below with your own data

reg add "HKLM\Software\Policies\Microsoft\System\DNSClient" /v "NV PrimaryDnsSuffix" /t REG_SZ /d "<enter value>" /f

PowerShell

# Value names and types follow the ADMX. Replace <enter value> below with your own data

New-Item -Path 'HKLM:\Software\Policies\Microsoft\System\DNSClient' -Force | Out-Null
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\System\DNSClient' -Name 'NV PrimaryDnsSuffix' -PropertyType String -Value '<enter value>' -Force | Out-Null