"Install failed - Error 1603. Fatal error during installation." when installing Autodesk products 2020 or above versions

Autodesk Support

Feb 25, 2025

Products and versions covered

Users reported that the following window pops up when installing Autodesk products 2020 or above versions.

Install failed - Error 1603

Fatal error during installation

Autodesk Desktop Licensing Service is not running or not running properly due to permissions.
Windows Installer issue.
Visual C++ redistributable is corrupt.
Microsoft .Net framework failed to install or was corrupted.
Corrupted installation of the program.
Corrupted installation of a product update.
Corrupted residual component installed.
Autodesk Desktop Licensing Service is set to run as "This account" in Windows Services.
Conflict with security software.

Follow one or more of the following solutions to solve the issue:

Configuring the settings of, disabling, or uninstalling security software may be required. Refer to: Autodesk Licensing Service: Known Conflicting Applications.

Remove with Microsoft Troubleshooter (also known as Fix-It) old residual leftover installation for the software that you are trying to install.
Check the Registry for any potential leftover installation for the software you are trying to install and remove it manually (Note. Be careful with the Windows Registry. If you are not an expert, ask your Admin to perform this step!).