Windows update error 64c can appear during program installation, while a Microsoft Corporation-related software program is running, during Windows startup or shutdown, or even during the installation of the Windows operating system.
Please download .NET Framework to this link here.
Please download Microsoft Silverlight to this link here.
If you have an old version of Microsoft Silverlight and .NET Framework, please uninstall it first before installing the new version.
If you have a problem with Silverlight use the tool below.
- Download Silverlight.diagcab at this link here.
- Run the downloaded Silverlight.diagcab
- Click Next and select Install.
https://youtu.be/oPcjiPpxaUQ










