Can I downgrade a VS15 Enterprise trial with a Professional key?

Question

Title says it all, I installed the VS15 Enterprise trial and signed in with my account to get a 90 day trial. Now it's coming to the end and I put the Professional key in thinking it may downgrade functionality, as a colleague has told me he is pretty certain he did the same thing.

It's not working so I was just wondering if anyone can confirm whether I have to re-install VS15 (but the professional version)?

Answer 1

Just for those who may end up here, in the end I personally re-installed Professional as it just wasn't playing ball - but am not sure if there's some other magic that could have been done.