Thursday, March 18, 2010

How to disable the IPv6 in Windows Vista

Internet Protocol Version 6 (IPv6), you can never deny it. However, sometimes it is required to disable the Internet Protocol Version (IPV6) in order to enable the Wireless connection or a Wired communication with the Router. Moreover, disabling the IPv6 is required to enable the Ethernet Local Area Network. Now, let’s check the steps to disable it.
1.    Click the Start button, and then click Control Panel .
2.    First, open the Control Panel from the Start Menu.
3.    Now, you’ve to choose the Network and Internet.
4.    In that Windows, click on the Network and Sharing Center.



5.    Now, click on Manage Network under Tasks in the Network and Internet Window.
6.    Then, on the Menu bar, you have to click on Advanced and then click on Advanced Settings.
7.    From that Window, you can easily disable the Internet Protocol Version 6 by removing the Tick Mark for all corresponding instances.
8.    Then, click on OK.



9.    If you’re going to perform the steps, remember you have to follow this procedure for each Network Connection type that are in use.
10.    At the same time, if you want to enable the IPv6 again, just follow the same procedure as it is mentioned above.

Performing the above steps will disable the IPv6 on the LAN interface and connections. However, it will not disable the IPv6 on the tunnel Interfaces or the IPv6 loopback interface. Therefore, it is required to make changes in the Windows Registry to disable the IPv6 on tunnel interface.

If you modify the registry incorrectly, some serious problems might occur and these issues might require reinstalling the Operating System. Therefore, ensure that you follow the steps carefully. At the same time, if you want to take a backup of the Registry, you can take if before modify it. Then, you can restore the registry if a problem occurs or whenever you want. If you don’t know to backup the registry we have given an article in our site to backup and restore the Windows Registry and its components. Search for the article and backup the Registry Files safely.

In order to disable the tunnel interface from the Registry follow the following steps.

•    First, open the Run Command from the Start Menu and type “regedit” in it. You may also press the Windows Key and the R Key simultaneously to get the Run Command Window.



•    After typing the “regedit” in the Run Command, please press the Enter Key.
•    Then, navigate to the following Registry Key.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\DisabledComponents

•    Remember, it is required to create the DisabledComponents if it is not available.



•    To create it, click on the Edit Menu, select the New and then click DWORD (32-bit) Value.
•    Then, type DisabledComponents and then press the Enter Key.
•    Now, double click on the DisabledComponents and set the value as 0xffffffff (hexadecimal value) to disable IPv6 on LAN interfaces, connections, and tunnel interfaces except the IPv6 loopback interface.
•    After that, click on OK.
•    In order to make the changes in the Registry, it is required to restart the Computer.

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