So I wake up at on the weekend and thought i'm gonna play some Zombies, so I launch my PC, go into google chrome, go into youtube, put my emo music on XD. Then I launch steam and go to launch CS:GO but when it was launching it stopped and a message popped up and said: Failed to start game (unknown error). I have no idea what I should do to fix it and apparently the people of the internet havent had this problem since 2014, so if anyone knows how to fix it please comment or message me on Steam if you know my steam account.