: Move the folder to an internal network share (UNC path) accessible by the offline machine.
Before you start, make sure both your target machine and the one you'll use to download the installation files meet the basic system requirements. According to Microsoft, you'll need:
Note: The --noweb flag tells the installer to only use the local cache and not attempt to contact Microsoft servers. Step 4: Maintaining Your Offline Installer visual studio 2019 offline installer
Complete Guide to Creating a Visual Studio 2019 Offline Installer
You have the files. Now, installing on a target machine (which has no internet) is trivial. : Move the folder to an internal network
: Get the Visual Studio 2019 bootstrapper from Microsoft.
If you need to deploy this across an enterprise Step 4: Maintaining Your Offline Installer Complete Guide
To download the actual installation files for offline use, you must run the bootstrapper from an elevated command prompt using the --layout switch.
--add : Optional. Restricts the download to specific workloads. If omitted, the bootstrapper downloads all components.
A 45 GB layout is massive. You can prune it.
Essential for secure environments that are never connected to the public internet.