| Feature | Installed Software | Portable Software | |---------|--------------------|--------------------| | Installation | Required (writes to registry and system folders) | None – runs directly | | User settings | Stored in AppData or registry | Stored in an .ini file or same folder | | Admin rights | Often needed | Usually not required | | USB drive usage | No | Yes | | Licensing | Bound to one machine | Unsustainable for commercial software |

Why? Because a portable application runs directly from a USB stick or cloud folder without installation. It leaves no traces in the Windows registry, making it ideal for IT technicians, consultants, or students who move between different computers.

If you have existing Visio 2010 (.vsd) files, copy them to a Diagrams folder on the same USB.