You can access the installation files through your Autodesk Account or the Education Community portal.
| Issue | Solution | |-------|----------| | | Usually a .NET or C++ redistributable failure. Manually install them from the installer’s 3rdParty folder, reboot, and try again. | | Error 1603 (fatal error) | Corrupt MSI installer state. Run msiexec /unregister then msiexec /regserver . Clear %temp% files. | | "License checkout failed" after install | Your license server might be offline. Switch to a standalone license (if you have a serial number) or reconnect to the network license manager. | | can't find "Inventor 2020" in Autodesk Account | Autodesk delists older versions after a few years. Contact Autodesk Support or use the "Show older versions" toggle in your product list. | autodesk inventor 2020 install