While Microsoft primarily promotes its lightweight web installer, offline ISO images are critical for specific environments:
Searching for open directories (often using Google dorks like intitle:"index of" "visual studio 2019" iso ) might lead you to public file servers. However, downloading executable development tools from unverified indexes poses severe security risks. Risks of Unofficial ISOs index of visual studio 2019 iso
Download the installer files once and deploy them across dozens of corporate workstations without exhausting network bandwidth. Microsoft publishes official checksums for all ISO releases
Microsoft publishes official checksums for all ISO releases. For example, the Visual Studio 2019 Community 16.11.xx might have a SHA-1 of 9B5C4B9D... . You can find these on Microsoft documentation sites or MSDN forums. You can find these on Microsoft documentation sites
For temporary use (typically 90 days), you can get Visual Studio 2019 Enterprise ISO from the Evaluation Center. This is a legal, official download – though it is time-limited.
I can provide the exact command-line scripts and configuration files for your scenario. Share public link