If you still see this error after installing version 9.0.3.46, try this quick fix: Open a Command Prompt as Administrator.
Analysis of Autodesk Licensing Service 9.0.34.6 Context: Troubleshooting, Version Update, and Availability autodesk licensing service 90346 download exclusive
If you encounter any issues during the download, installation, or configuration process, refer to the Autodesk support resources: If you still see this error after installing version 9