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    Windows Update error 0x8007066A or 66A

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    • Question

      Windows Update error 0x8007066A or 66A

      Hello,

      I get Windows Update error “0x8007066A” or “66A” when installing updates using Windows Update or Microsoft Update, Is this a known issue? How do I fix this?

      Thanks

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      Hello LD,

       

      This error is actually caused by an issue with .NET Framework 4. You can resolve the issue by doing a repair of .NET Framework 4. See this KB article on how that’s done.

       

      Error code "0x8007066A" or "66A" when you use the Windows Update or Microsoft Update Web site to install .Net Framework updates

       

      Thanks

       

      Bobby

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      BobbyMi

      Forum Moderator
      BobbyMi Microsoft 

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    • View Answer at http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_install/windows-update-error-0x8007066a-or-66a/d4fe1203-d165-4e41-9f02-27f079167b2c
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