Hey there, if you want to completely uninstall RaceRoom and Install it all over from scratch... Highlight RaceRoom in your Steam library and right click on it with your mouse. One of the options in the menu that appears should say 'uninstall.' Steam should completely remove the game files. So to install it again, just click on the "Install" button where you would normally click 'Play.' If you were having some trouble with the game, you might first try verifying the game files, which would be faster than entirely re-installing the game. To do that, right click on RaceRoom in Steam and click Properties from the menu that appears. In the Window that pops up, select the Local Files tab and then find the button that says 'Verify Integrity of Game Cache." Steam will check to make sure you have all the game files and that they arent corrupt. This will take a few minutes at most. If that doesnt work, then you could try re-installing the game.