Autocad 64 Bit Portable ((exclusive)) -

Autodesk does not offer an official "Portable" version of AutoCAD.

Stability Issues: AutoCAD is a resource-intensive program. Portable versions often crash because they lack the necessary registry entries and supporting libraries found in a full installation. Autocad 64 Bit Portable

AutoCAD Web App: You can edit and view DWG files directly in a web browser without installing any software. This is the closest official equivalent to a "portable" version. Autodesk does not offer an official "Portable" version

Searching for a "Portable" version of AutoCAD 64-bit typically leads to two different concepts: unofficial "cracked" versions that run without installation and official Autodesk tools meant for license mobility. Important Warning on Unofficial Portable Versions Autocad 64 Bit Portable