The problem: Sometimes this error occurs when installing or re-installing v6 on Windows XP SP2: C:\>ipv6 install Installing… Failed to complete the action. Error 0x800704b8 C:\>netsh int ipv6 install An extended error has occurred. The solution: Repair the security database: esentutl /p %windir%\security\Database\secedit.sdb Then try the install again: ipv6 install
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