You guess the installation is taking up too much CPU or something? You don't really understand computers. What it definitely means is you can't do anything with your computer until the game finishes installing. Which is annoying because 1) you kind of wanted to ask AA if ze's started it yet, and more importantly 2) you said you were going to be doing some serious gaming and if your stupid neighbor catches you wandering around you'll look like you were making some kind of ridiculous excuse.
Your only choice is to install Dragon Messenger's extremely janky mobile version on your phone and--
Hold on. Where's your phone?