(support ended in 2017). Even with a legal license, it may have security vulnerabilities.
Autodesk has never published a portable version of AutoCAD. Any “portable” version you find online (including on Google Drive) is almost certainly: autocad 2014 portable google drive verified
If you need a permanent, lightweight solution, look into "LT" (Lite) versions or reputable alternatives like BricsCAD or Nanocad, which often have lower system requirements. (support ended in 2017)
If you need CAD on the go without the security nightmare of a "Google Drive verified" crack, consider these options: consider these options: