 I'm going to show you how to use the Airtame app on your PC. Find the blue icon on your desktop and click on it. All the devices you can cast to will show up. You're going to choose either to share your window or share your entire desktop. And then it will give you a four-digit code to type in. Look up at the screen and put the code in. Soon as you put it in, you are casting. I always recommend just casting the entire desktop. So once you are doing that, anything you are seeing in your desktop is being cast. If you want to adjust the sound to cast as well, you just need to turn on this button to make sure that your sound device is being cast. When you're ready to stop, all you need to do is go to the red stop button and you're finished casting. That's all you need to do to disconnect from casting.