have you had these working before on two separate computers? - some programs don't allow it, and that includes some plugins, although I don't have these so I don't know if it's the case [I assume they are bought or bundled and not free]

if your operating system and your security settings and software is the same on both computers it's otherwise difficult to say - you can always try the right click and install as administrator, or install in compatibility mode for a previous windows version - but if John can install them that's a long shot maybe...