Stick to the official sources—Windows Update or a clean Windows ISO. Your security and system stability are worth the extra five minutes.
Thus, -Extra is a conceptual flag for “do more than the minimal .NET 3.5 install.” Microsoft-windows-netfx3-ondemand-package.cab -Extra
This package typically resides inside the installation media of Windows operating systems within the path. The specific naming convention for x64 architecture builds often expands to microsoft-windows-netfx3-ondemand-package~31bf3856ad364e35~amd64~~.cab . Why Offline Deployment is Necessary Stick to the official sources—Windows Update or a