Disable IPv6 Windows 2008, Windows 7, Vista

If you'd like to disable IPv6 in your computer (Windows 2008, Windows 7, Vista), you can do it in several steps:
1. Uncheck IPv6 in "Local Area Connection Properties":

2. Run Regedit

3. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6


4. Create DWORD (32-bit) entry "DisabledComponents" if it doesn't exist:

5. Choose an approprite value:

- 0xffffffff to disable all IPv6 components, except the IPv6 loopback interface. This value also configures Windows Vista to use Internet Protocol version 4 (IPv4) instead of IPv6 in prefix policies.
- 0x20 to use IPv4 instead of IPv6 in prefix policies.
- 0x10 to disable native IPv6 interfaces.
- 0x01 to disable all tunnel IPv6 interfaces.
- 0x11 to disable all IPv6 interfaces except for the IPv6 loopback interface.

6. Restart your computer

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