So, I started the download a while ago, went slowly but otherwise fine. Then I started the install. I double clicked the install exe and nothing happened for a long time until a window flashed for an instant. Then a lot of nothing for a while. Now, it doesn't show a window on my start menu taskbar, but when I try to just go to my desktop, with nothing else on my screen, it shows a square. I assume it's suppose to be the game's install window. The window shows whatever I was looking at that was in that area of the screen on another window.

Edit: Okay. So the old, direct download got me to the installed, updated game.