If your goal is to use Fusion 360 without a local installation, the most reliable and "portable" method provided by Autodesk is Fusion Team in a web browser. While it does not offer the full feature set of the desktop client, it allows for:
Viewing 3D models.Making basic edits and comments.Accessing project data from any computer with an internet connection. Running Fusion 360 on Restricted Computers autodesk+fusion+360+portable+install
If you are trying to use Fusion 360 at school or work where installations are blocked, consider these steps: If your goal is to use Fusion 360