Completely disable IPv6 on Windows 7 and Server 2008 R2

You might have reason to do this, here’s how I did it (there are slight variations elsewhere online).

  1. Set the following registry value:
    HKLM\SYSTEM\CurrentControlSet\services\TCPIP6\Parameters\DisabledComponents = 0xFFFFFFFF
  2. Reboot

After the reboot you can check that IPv6 is not working by issuing ipconfig /all and noticing the complete lack of IPv6 in the output. Your machine will also remove any IPv6 entries it might have previously placed into Windows dynamic DNS, leaving only IPv4.

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One Response to Completely disable IPv6 on Windows 7 and Server 2008 R2

  1. Courtney says:

    Great find! This saved the day when I deployed a Windows 7 workstation in a legacy Windows 2k domain.

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