Running a complex CAD application from a standard USB stick is painfully slow. Auto-save operations freeze for 10–15 seconds. Large assemblies (20MB+ DWG) can take 5 minutes to open. Only an NVMe SSD in a USB 3.2 enclosure works decently.
Disclaimer: AutoCAD 2016 is an older version and support, including activation services, ended as of May 2025. Portable versions are often unofficial, user-created "repacks." System requirements for AutoCAD 2016 - Autodesk
As the sun began to peek over the horizon, Leo went to save his work one last time. He reached to close the program, but when he clicked the 'X', a small dialogue box appeared that he hadn't noticed before: “Temporary session complete. Traces removed.”