Go to the Adobe website and download the uninstaller and run it when it is finished restart the computer. The go back to the website and download the right one for your OS and install it make sure you shut down your browser before you install it. Do you have a You Tube account if you have one log in with it. Your Google account will do as well if you don't have one subscribe to get one. By logging on with your account you will unlock all of the features including the high definition sound.