Autodesk does not provide an official "portable" version of AutoCAD 2020 that runs from a USB drive without installation. While "portable" versions are often found on third-party sites, these are unofficial, unverified, and frequently contain security risks. 🛠️ Official Alternatives
If you’ve searched for "Portable AutoCAD 2020," you’re likely looking for a way to run the industry-standard CAD software without a full installation—perhaps on a USB drive, on a computer without admin rights, or without a paid license. Portable Autocad 2020
These tutorials provide visual walkthroughs of the 2020 interface and new features: A First Look at AutoCAD 2020 190K views · 7 years ago YouTube · ARKANCE USA AutoCAD 2020 User Interface | Tutorial 1K views · 6 years ago YouTube · CADCIM Technologies Autodesk does not provide an official "portable" version