Having never upgraded EndNote, I'm a little unsure of the process. Now we just want to make sure that my boss's 3 computers are upgraded to X7, with a single license for the 3 computers. The other researcher (owner of 'L2') has since left our group.
I don't have access to all of my boss's computers to check, but I have a suspicion that X5 on 2 of her computers have been activated with one license key ('L1') but X5 on the the third computer was mistakenly activated with the other license key ('L2'). When our group purchased X5, we bought 2 copies for two researchers. My boss has X5 on 3 different computers of hers (work, laptop, home), and would like to upgrade all 3 to X7 (and eventually X8) because X5 is not playing nice with Word 2016.