If you haven't already, go to myviewboard.com and log in with Google. It will let you link your Google Drive, and Classroom. You can log into the Whiteboard app to your windows desktop manually or install the Viewboard Companion app on your phone to simply scan the barcode. The Companion app will also let you remotely control your board from your phone.
When you log into the myviewboard site click on Youtube Chanel to see videos on how to get the most out of your board.