I was playing a game on a server then sudenly it downloaded me a fyle that i can not find but i saw it and thought it was an error from the game.The next day i booted my pc and things were fine then crome opened to a add fly link. Thinking of this i did full scan on avast and a full boot scan but there where no results.Now every time i boot the pc the add fly link opens on me and the game i play have strange files...i delete them but the next time i boot the pc they are again there. Please help me how do i find this program since is now malicious as of avast result