--layout : Defines the destination folder for the offline files.
your layout periodically by running the same command to catch minor version patches.
your environment variables (like PATH) are updated to point to the new MSBuild location. If you'd like to customize this setup further:
the Windows SDK if your projects target specific Windows versions.
The installer will detect the local files and proceed without needing an internet connection. Select the specific components you need and click Install. Key Workloads for Build Tools 2019