I wouldn't think so, normally an install asks you where to install. You just have to navigate to the Steam folder.

Or you could do what I've done with some other games (they needed a patch that I couldn't get through Steam), remove FFXIV entirely from the Steam directory and put it somewhere else. Just remember to update your shortcuts!

Quote Originally Posted by Malusion View Post
On steam you can go on the "games" tab and select "activate a game on steam" to enter game keys from outside of steam to your steam library. If thats not what you meant and doesn't work, sorry for misunderstanding, its just what I've done the few times I've had a physical game.
He's referring to buying the physical copy, which may not contain a Steam code with it.