Running CAD software from a portable drive is I/O intensive. Here is how different drives perform:
Ideally leaves no registry entries on the host PC. Low Overhead: Often stripped of heavy secondary features. Why Users Look for It AutoCad 2013 - Portable-
: It uses the native DWG 2013 format, which introduced high-quality PNG thumbnail previews. Critical Risks and Legal Concerns Running CAD software from a portable drive is I/O intensive