Trouble installing heavensward. Please help

[SalMag]

So, I got the Windows version of ARR installed and today i bought heavensward, which too was the Windows version, but when I try to install it, it says base game is required. Wtf?! I have the base game and the correct version too, this is starting to get really frustrating and any help would be greatly appreciated.

I also registered my heavensward code in mogstation and it said it was successfull and whatever and that it was the Windows version of the game.

Edit: I booted up ARR and a window popped up which started a 4 gig download. Not sure if i get to play Heavensward once its done downloading but i'll edit my post again if my troubles aren't solved.

Edit2: Downloaded the patch and my ARR became Heavensward. Problem solved! Question remains though: What the hell is the disk for then?

My problem is solved, lock this thread please!