Well, i tried opening the game many ways. Nothing happen. No launcher no game. Switching accounts doesn't work. Then i was just doing my business doing whatever on my PC and "The file cannot be accessed by the system" pop out of nowhere like 35 minutes later. It took that long to try and start my game or something..
Edit- GOOD NEWS ! i got the launcher to open, it only took this much errors to open it!!!
Edit - it's re-downloading the game after the game's already downloaded and played. Awesome.