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You must restart your computer for these changes to take effect.admx file to expose the registry settings of below table in a Group Policy setting. Re-enable IPv6 on nontunnel interfaces and on IPv6 tunnel interfaces Re-enable IPv6 on all nontunnel interfaces

For example, you will still be able to run ping ::1 after configuring this setting.ĭecimal 16 Hexadecimal 0x10 Binary xxx1 xxxxĭecimal 1 Hexadecimal 0x01 Binary xxxx xxx1ĭisable IPv6 on all nontunnel interfaces (except the loopback) and on IPv6 tunnel interfaceĭecimal 17 Hexadecimal 0x11 Binary xxx1 xxx1 You cannot completely disable IPv6 as IPv6 is used internally on the system for many TCPIP tasks. Even if the DisabledComponents registry key is set to disable IPv6, the check box in the Networking tab for each interface can be checked.

The DisabledComponents registry value doesn't affect the state of the check box. For more information, see Internet Protocol Version 6 (IPv6) Overview. Additionally, system startup will be delayed for five seconds if IPv6 is disabled by incorrectly, setting the DisabledComponents registry setting to a value of 0xffffffff. Location: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\ Name: DisabledComponents Type: REG_DWORD Min Value: 0x00 (default value) Max Value: 0xFF (IPv6 disabled) IPv6 Functionalityĭecimal 32 Hexadecimal 0x20 Binary xx1x xxxx Recommended instead of disabling IPv6.ĭecimal 255 Hexadecimal 0xFF Binary 1111 1111 See startup delay occurs after you disable IPv6 in Windows if you encounter startup delay after disabling IPv6 in Windows 7 SP1 or Windows Server 2008 R2 SP1.

The IPv6 functionality can be configured by modifying the following registry key: Before you modify it, back up the registry for restoration in case problems occur. Serious problems might occur if you modify the registry incorrectly. Follow the steps in this section carefully.