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How to disable IPv6 on a Windows Server 2008

By default, IPv6 is enabled in Windows server 2008 and it is not recommended to disable it. However, if for some reasons, you do want to disable it, please follow these steps.

1. Open Registry Editor.
2. Locate the following registry subkey:
3. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters
4. In the details pane, click New, and then click DWORD (32-bit) Value.
5. Type DisabledComponents, and then press ENTER.
6. Double-click DisabledComponents, and then type 0xffffffff in Hexadecimal or 4294967295 in Decimal.

Note The 0xffffffff value or the 4294967295 value disables all IPv6 components except for the IPv6 loopback interface.

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