To use an iPad as a second screen on a Windows 10 computer, you'll need to use a third-party app like SplashTop.

You can share your screen in a BlueJeans video call on desktop or mobile by pressing the "Share Screen" button.

There's lost of ways to help your friends and family solve their tech problems. You can send them links to Lifehacker articles, tell them how to fix a problem over the phone, or you could fix the ...