During installation, choose "Trial License" or "Academic License." Do not select "Network License" unless you are at a university computer lab.
Launch the software. It will automatically check your Bentley account for active entitlements. Conclusion: No Such Thing as a Permanent Free Lunch To summarize the search intent behind "Bentley GeoStructural Analysis Free Download": There is no permanent, free, fully functional version of PLAXIS or gINT available legally. Bentley Systems is a commercial enterprise serving professional engineers. Bentley GeoStructural Analysis Free Download
Inside the CONNECTION Client, search for "PLAXIS 2D CE V21" or "PLAXIS 3D AE." Bentley GeoStructural Analysis Free Download
Download the Bentley CONNECTION Client (a desktop application). This manages all your licenses and software updates. Bentley GeoStructural Analysis Free Download