Error code “0x8007066A” when you use the Windows Update or Microsoft Update Web site to install .Net Framework updates
You receive the following error code when you try to install .NET Framework updates when using Windows Update or Microsoft Update.
Error code: 0x8007066A
Note: If you are not installing .NET Framework Updates when you receive error code 0x8007066A when, see the following article for troubleshooting steps:
958049 Error code when you use the Windows Update or Microsoft Update Web site to install updates: “0x8007066A”
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB2507641.