If you are responsible for installing or upgrading the Revit or Revit LT software to a new release, learn about recent changes to the installation process.
Advanced material library: In addition to the standard material library, an advanced material library installs with Revit. This library provides new appearance assets that use physically-based definitions, optimized for use with the Autodesk rendering engine.
Microsoft® Windows® must support .NET Framework 4.7: Revit 2019 and Revit LT 2019 require .NET Framework 4.7 to work properly.
Earlier versions of the Microsoft Windows 10 operating system (Version 1507/Build 10240 and Version 1511/Build 10586) do not support .NET Framework 4.7.
Microsoft Windows 7 requires Service Pack 1 to support .NET Framework 4.7.
Before installing the software, upgrade to a newer version of the operating system if needed.