While messing around a bit with the game in what I believe prefrences(something when you right click and add things like 256 colors) My game started to start in fullscreen, ugly colors and an old task bar. This ended up not letting me play the game (the screen goes black if I try to log in) and ruining my singleplayer let's play and is stalling my multiplayer let's play.
When I try to redownload the game it says:
"An error occurred while starting the application.
The current operation requires elevation."