Yes—if you need interoperability with older consultants or rely on legacy plugins (like older Dynamo versions). No—if you are starting a new 5-year project, as Autodesk ended mainstream support for 2019 in 2022. You won't get security patches.
Pro Tip for IT Managers: Deploy Revit 2019 using the Autodesk Deployment Wizard (included in the installer folder). This allows you to bake in the serial number, license server, and network paths to families before rolling it out to 50 workstations. autodesk revit 2019 installation and activation
Have you run into the "License Error 0x3" after a Windows update? Let me know in the comments—there's a specific registry clean we can try. Yes —if you need interoperability with older consultants
Disclaimer: Ensure you have a valid Autodesk license. This guide assumes legitimate use with a purchased or educational license. Have you run into the "License Error 0x3"
Activating Revit 2019 has changed significantly in recent years. Autodesk has moved toward a "Named User" model, phasing out serial numbers for new subscriptions. However, depending on your license type, you will fall into one of two scenarios:
Applies to: Revit 2019, Revit LT 2019
System Requirements: Windows 7 (64-bit), 8.1, or 10 (64-bit); 4+ GB RAM (8+ GB recommended); 10+ GB free disk space; DirectX 11 capable GPU