If you have a valid Visio license and need it on a USB drive for occasional use on trusted PCs, you can try (not true portable but practical):
The search for a version typically stems from a need to create professional diagrams without the constraints of a traditional local installation. While many users look for a standalone executable to run from a USB drive, it is important to distinguish between official mobility solutions provided by Microsoft and unofficial third-party packages. Understanding Microsoft Visio Portable Microsoft Visio Portable
Let us state this clearly from the outset: If you have a valid Visio license and
When you search for “Microsoft Visio Portable,” you will find websites offering pre-activated, repackaged versions. Usually, these are 50MB to 200MB zipped folders claiming to be “Visio 2019 Portable” or “Visio 2021 Lite.” Here is why: Usually, these are 50MB to 200MB zipped folders
Stop risking your security and career on cracked portable versions. The best portable diagramming tool today does not have the Microsoft logo—but it works better, runs faster, and won’t steal your data.
You may find "Portable Visio" downloads on third-party sites. These are typically unauthorized "repacks" and carry significant risks: Security Threats: Often bundled with malware, spyware, or keyloggers. Stability Issues: