The first thing you can try to fix Windows Update Error 66A or 13EC for .NET Framework is to perform Windows Update troubleshooting. It will find and troubleshoot ...
This option is available for NET Core 3.1, .NET 5.0, and .NET 6.0 and will be rolled out through the Automatic updates channel and Windows Server Update Services (WSUS), and Microsoft Update Catalog.
Microsoft released Patch Tuesday updates on Windows 10 (KB5027215, among others), and Windows 11 (KB5027231) on June 13, which was the second Tuesday of the month. The update addressed security issues ...