I faced issues with IPv6 so decided to disable IPv6 from all my Windows 8.1 PC’s. As my DNS server was showing double entries for each machine such IPv4 & IPv6 as shown below.
So I decided to disable IPv6 from all machines. You can not disable IPv6 by editing the network adapter properties by un-checking the IPv6 and it does not work. A registry hack is required to disable IPv6 completely.

If you want to disable IPv6 properly you have to disable it via Registry. To add registry setting to disable IPv6 use below method,
Click on Start –> Run –> type regedit to open registry editor
Locate the following registry entry:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters
In the details pane click New and then click DWORD (32-bit) Value.
Type DisabledComponents, and then press ENTER.
Double-click DisabledComponents, and then type 0xffffffff as shown below
If you want to add registry entry automatically simple create Batch script and add below command into the script & run the Batch script As Administrator.
reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TCPIP6\Parameters /v DisabledComponents /t REG_DWORD /d 0xffffffff /f



If you want to disable IPv6 properly you have to disable it via Registry. To add registry setting to disable IPv6 use below method,
Click on Start –> Run –> type regedit to open registry editor
Locate the following registry entry:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters
In the details pane click New and then click DWORD (32-bit) Value.
Type DisabledComponents, and then press ENTER.
Double-click DisabledComponents, and then type 0xffffffff as shown below

If you want to add registry entry automatically simple create Batch script and add below command into the script & run the Batch script As Administrator.
reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TCPIP6\Parameters /v DisabledComponents /t REG_DWORD /d 0xffffffff /f
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