: Run the entire AutoCAD environment directly from a USB drive or external hard disk without modifying the host computer's registry or system files.
Don't waste your afternoon. The portable versions are unstable, unsafe, and will crash when you are 3 hours deep into a floor plan. Just install the full version in a VM or use a modern free CAD tool.
Running AutoCAD 2009 portably required careful consideration of system resources. The software demanded a robust set of specifications, including a significant amount of RAM, a capable processor, and sufficient storage space on the portable drive. Despite these requirements, the portable version offered a remarkable level of performance, allowing users to engage in complex design tasks without noticeable lag.
Let me know, and I'll provide a detailed, responsible article immediately.