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Description:  

Determines if dynamic update is enabled.

Computers configured for dynamic update automatically register and update their DNS resource records with
a DNS server.

If you enable this setting, the computers to which this setting is applied may use dynamic DNS registration
on each of their network connections, depending on the configuration of each individual network connection.
For a dynamic DNS registration to be enabled on a specific network connection, it is necessary and sufficient
that both computer-specific and connection-specific configurations allow dynamic DNS registration. This
setting controls the computer-specific property controlling dynamic DNS registration. If you enable this
setting, you allow dynamic update to be set individually for each of the network connections.

If you disable this setting, the computers to which this setting is applied may not use dynamic DNS
registration for any of their network connections, regardless of the configuration for individual network
connections.

If this setting is not configured, it is not applied to any computers, and computers use their local configuration.

Supported on: At least Windows XP Professional or Windows Server 2003 family.
Dynamic Update
Description Gpedit Regedit CMD Back VBScript PowerShell Script
Gpedit:   

Please perform the following steps:

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here
Type gpedit.msc and press Enter
In the Group Policy window please navigate to Computer Configuration -> Administrative Templates ->
Network -> DNS Client and open Dynamic Update.
Not Configured -> is the Default state
Enabled -> apply this GPO
Disabled -> this GPO will not be applied

To finish press ok button and close Group Policy window.
Description Gpedit Regedit CMD Up Back VBScript
Type regedit and press ok
Please confirm User Account Control pop-up
Microsoft official disclaimer

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by
using another method. These problems might require that you reinstall the operating system. Microsoft
cannot guarantee that these problems can be solved. Modify the registry at your own risk.

Note: This registry key is created by Group Policy when this GPO is Enable or Disable. The GPO Default state
is Not Configured -> this registry entry is not present.

Please navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\DNSClient and
locate
RegistrationEnabled registry key
Regedit:          

Please perform the following steps:

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here
Description Gpedit Regedit CMD Up Back VBScript
Double click on RegistrationEnabled and edit the value:

To Enable:
Change the data value with 1

To Disable:
Change the data value with 0

To finish press ok button and close Registry Editor window

Note: Manual editing of this registry key will not be reflected in Group Policy. If you modify this GPO from
Group Policy this registry key will be rewritten.
Description Gpedit Regedit Back CMD VBScript Up
Type cmd, right click on cmd icon under the Programs and click on Run as administrator
Please confirm User Account Control pop-up
Please select, right and copy a registry key from below, then right click on command prompt window
, select Paste and press Enter

Enabled:
REG add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\DNSClient" /v RegistrationEnabled /t REG_DWORD /d 1 /f

Disabled:
REG add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\DNSClient" /v RegistrationEnabled /t REG_DWORD /d 0 /f

Not Configured:
REG DELETE "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\DNSClient" /v RegistrationEnabled /f

Note: Manual editing of this registry key will not be reflected in Group Policy. If you modify this GPO from
Group Policy this registry key will be rewritten.
CMD:          

Please perform the following steps:

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here
Description Gpedit Regedit Back CMD VBScript Up
VBScript:          

Const HKEY_LOCAL_MACHINE = &H80000002
strComputer = "."
Set oReg=GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & _
strComputer & "\root\default:StdRegProv")

strKeyPath = "SOFTWARE\Policies\Microsoft\Windows NT\DNSClient"
oReg.CreateKey HKEY_LOCAL_MACHINE,strKeyPath
strValueName = "RegistrationEnabled"
'Enabled
dwValue = 1
'Disabled
'dwValue = 0
oReg.SetDWORDValue HKEY_LOCAL_MACHINE,strKeyPath,strValueName,dwValue
'Not Configured
'oReg.DeleteValue HKEY_LOCAL_MACHINE,strKeyPath,strValueName
Description Gpedit Regedit Back CMD VBScript Up
PowerShell Script :          

Enabled\Disabled

$RegKey = "HKLM:\SOFTWARE\Policies\Microsoft"
If(Test-Path ($RegKey + "\Windows NT"))
{
 $RegKey = "HKLM:\SOFTWARE\Policies\Microsoft\Windows NT"
 If(Test-Path ($RegKey + "\DNSClient"))
 {
   $RegKey = "HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\DNSClient"
   ##Enabled
   New-ItemProperty -path $RegKey -name RegistrationEnabled -value 1 -PropertyType DWord -Force
   ##Disabled
   ##New-ItemProperty -path $RegKey -name RegistrationEnabled -value 0 -PropertyType DWord -Force
 }
 else
 {
   New-Item -path $RegKey -name DNSClient
   $RegKey = "HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\DNSClient"
   ##Enabled
   New-ItemProperty -path $RegKey -name RegistrationEnabled -value 1 -PropertyType DWord
   ##Disabled
   ##New-ItemProperty -path $RegKey -name RegistrationEnabled -value 0 -PropertyType DWord
 }
}
else
{
 New-Item -path $RegKey -name Windows NT
 $RegKey = "HKLM:\SOFTWARE\Policies\Microsoft\Windows NT"
 New-Item -path $RegKey -name DNSClient
 $RegKey = "HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\DNSClient"
 ##Enabled
 New-ItemProperty -path $RegKey -name RegistrationEnabled -value 1 -PropertyType DWord
 ##Disabled
 ##New-ItemProperty -path $RegKey -name RegistrationEnabled -value 0 -PropertyType DWord
}

Not Configured

$RegKey = "HKLM:\SOFTWARE\Policies\Microsoft"
Remove-ItemProperty -Path($RegKey + "\Windows NT\DNSClient") -name RegistrationEnabled
If( (Get-Item -Path($RegKey + "\Windows NT\DNSClient")).ValueCount -eq 0 -and (Get-Item -Path($RegKey + "\Windows NT\DNSClient")).SubKeyCount -eq 0)
{
 Remove-Item -Path($RegKey + "\Windows NT\DNSClient")
 If( (Get-Item -Path($RegKey + "\Windows NT")).ValueCount -eq 0 -and (Get-Item -Path($RegKey + "\Windows NT")).SubKeyCount -eq 0)
 {
   Remove-Item -Path($RegKey + "\Windows NT")
 }
}
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