No problem selling it I suppose, just that the buyer probably won't be able to register it properly if it is a sidegrade/upgrade version, nor will they be able to take advantage of any future upgrade/sidegrades themselves.

As to license transfers, that would be up to E-on, and as far as statutory rights are concerned, I'd like to see which ones you think apply - no ones stopping you selling it, just that the buyer might not get a fully functioning item because it was for your personal use only (the EULA).

Which is what was meant by Cheers when he said did you check with E-on.