If for some reason you cannot - or don't want to - install it, the "Portable" version of the software can be used instead. It runs on any system without installing it, even from an external USB dongle. You can find it on --> software download page
Please note its main limitation: due to the fact that the virtual video driver cannot be installed, a VC client (e.g. Skype) on the computer running the Portable will not be able to access the Huddle Hub One video feed. All other features (presentations, possibility to send a video stream to another computer acting as the VC host) are not affected.