Autodesk Inventor is not a simple utility. It is a weighing over 10-15 GB. Here is why a legitimate portable version does not exist:
is not an official product or feature offered by Autodesk . While users often search for a portable version to run this heavy-duty 3D CAD software from a USB drive or without a full installation, the program’s architecture makes this extremely difficult and technically unsupported. autodesk inventor portable