Do not use AutoCAD Portable for any professional, academic, or personal work that you value.
A common myth is that "portable software runs faster because it doesn't install anything." In reality, the opposite is often true. autocad portable vs autocad
"AutoCAD Portable" is not an official product released by Autodesk. It is a "hacked" or "cracked" version of the software that has been modified by third parties to run without a formal installation process. It is typically compressed into a single folder or executable, designed to be run from a USB drive or a secondary hard drive. Do not use AutoCAD Portable for any professional,