How to disable certain Internet Protocol version 6 (IPv6) components in Windows Vista, Windows 7 and Windows Server 2008

This article describes step-by-step instructions for how to disable certain Microsoft Internet Protocol version 6 (IPv6) components in Windows Vista. To disable IPv6 components, you must be logged on to the Windows Vista computer as a member of the Administrators group, or your user account must be granted permissions to edit the Windows registry.

To disable certain IPv6 components in Windows Vista, follow these steps:
Click Start. Collapse this imageExpand this image, type regedit in the Start Search box, and then click regedit.exe in the Programs list.In the User Account Control dialog box, click Continue.In Registry Editor, locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\ Double-click DisabledComponents to modify the DisabledComponents entry.Note If the DisabledComponents entry is unavailable, you must create it. To do this, follow these steps:

In the Edit menu, point to New, and then click DWORD (32-bit) Value.
Type DisabledComponents, and then press ENTER.
Double-click DisabledComponents.

Type any one of the following values to configure the IPv6 protocol, and then click OK:
Type 0 to enable all IPv6 components.

Note The value "0" is the default setting.

Type 0xffffffff to disable all IPv6 components, except the IPv6 loopback interface.
Type 0x20 to use IPv4 instead of IPv6 in prefix policies.
Type 0x10 to disable native IPv6 interfaces.
Type 0x01 to disable all tunnel IPv6 interfaces.
Type 0x11 to disable all IPv6 interfaces except for the IPv6 loopback interface.

Note

Using a value other than 0x0 or 0x20 will cause the Routing and Remote Access service to fail after this change goes into effect. You must restart your computer for these changes to take affect.

Administrators must create an ADMX file in order to expose the settings in a Group Policy setting.

Registry Fix

Every Microsoft Windows operating system has a registry. Your system registry holds a wealth of information about your computer, which is why we constantly hear from users that after using their PC for a short length of time, it no longer works the way it used to. This is due in part to invalid entries that exist in your system registry, that might exist because of software you are no longer using or software that was not properly removed. By removing these invalid entries, you can significantly increase the performance of your PC.



The most common PC troubles are found at locations spread throughout your PC. We have pinpointed these locations, and our free scanner allows you to scan for invalid registry entries that might be causing your PC issues. The software will inform you of where the errors exist, and what potential errors they might cause. RegistryFix will scan for errors related to ActiveX controls, DLL issues, Windows explorer errors, Windows installer issues, Internet Explorer errors, Iexpore and System32 errors, Runtime errors, Outlook and Outlook Express Errors, EXE errors, Svchost errors and a wide variety of other system issues.

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End of support for Windows XP SP2 and Windows Vista RTM

As Microsoft has announced in 2008, support for Windows XP Service Pack 2 (SP2) will end on July 13, 2010. Support for Windows 2000 will end on the same date. Support for Windows Vista Release to Manufacturing (RTM) will end on April 13, 2010.

NOTE: There is no Service Pack 3 for the 64-bit version of Windows XP. If you are running the 64-bit version of Windows XP with Service Pack 2, you are on the latest service pack and will continue to be eligible for support and receive updates until April 8, 2014.

To find out if you are running the 64-bit version of Windows XP, right-click My Computer, then click Properties. If you do not see "64-bit" listed, then you are running the 32-bit version and you need to install Service Pack 3 . If "64-bit" is listed under System, then you are running the 64-bit version.

Customers running an unsupported version of Windows or service pack will not be eligible for any of our support options. Updates, including security updates released with bulletins from the Microsoft Security Response Center, will be reviewed and built for the supported versions and service packs only. The most current service packs are available to organizations, and they are easily deployed via Windows Update, Windows Server Update Services/Microsoft System Center, and the Microsoft Download Center. To better understand the Microsoft Support Lifecycle Policy and your support options visit the Microsoft Support Lifecycle page.

There is no supported migration path from Windows 2000 to Windows 7 using the Windows User State Migration Tool (USMT). You will need to upgrade to Windows XP and then migrate to Windows 7 using USMT 4.0, a tool included with the Windows Automated Installation Kit (AIK). For more information on Windows 2000 and Windows 2000 Server End of Support visit Windows 2000 End of Support Solution Center.

Updating your Windows XP, Windows Vista and Windows 2000 PCs before the end of mainstream support dates will ensure your PCs stay supported and receive security updates. The best way to be secure and supported is by migrating to Windows 7.