It is common for IT administrators to want to disable IPv6. This is often because of some unknown, networking-related issue, such as a name resolution issue. We do not recommend that you disable IPv6 or its components. If you do, some Windows components may not function. Click Run or Open in the File Download dialog box. This wizard may be in English only. However, the automatic fix also works for other language versions of Windows. Important Follow the steps in this section carefully.
Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur. Additionally, system startup will be delayed for 5 seconds if IPv6 is disabled by incorrectly, setting the DisabledComponents registry setting to a value of 0xfffffff. The correct value should be 0xff.
For more information, see the "What are Microsoft's recommendations about disabling IPv6? The DisabledComponents registry value does not affect the state of the check box. Therefore, even if the DisabledComponents registry key is set to disable IPv6, the check box in the Networking tab for each interface can still be checked.
This is expected behavior. Administrators must create an. By default, the 6to4 tunneling protocol is enabled in Windows Vista, Windows Server or later versions when an interface is assigned a public IPv4 address that is, an IPv4 address that is not in the ranges If this behavior is not desired, we recommend that you disable IPv6 tunnel interfaces on the affected hosts. LDR service branches contain hotfixes in addition to widely released fixes. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
Windows Server R2 file information notes Important Windows 7 hotfixes and Windows Server R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. For more information about how to enable IPv6, click the following article number to view the article in the Microsoft Knowledge Base:. Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:. Additional file information for Windows Server Additional files for all supported xbased versions of Windows Server File name Update. Need more help? Expand your skills. Get new features first. Was this information helpful? Yes No. Thank you! Any more feedback? The more you tell us the more we can help. Can you help us improve? Resolved my issue. Privacy policy.
It is common for IT administrators to disable IPv6 to troubleshoot networking-related issues such as name resolution issues. We do not recommend that you disable IPv6 or its components. If you do, some Windows components may not function. Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.
Windows use bitmasks to check the DisabledComponents values and determine whether a component should be disabled. For each bit, 0 means false and 1 means true.
Refer to the following table for an example. This registry value doesn't affect the state of the following check box.
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