PEI has been a Microsoft Gold Partner since 2005, and our engineers hold multiple Gold Microsoft Communications Certifications. To stop sharing, choose the Stop Sharing icon in the Call Options Window.Anything that appears over the shared program-whether a notification popping up or an application you drag over-will show up as a grey box to everyone else in the call. As you change the size of this window, the red outline will change with it. If you’re sharing a program from the Window list, only that program will be shared, and just that program will be outlined in red.If it’s visible on your screen, it will be visible in the meeting. This means you can switch between multiple windows and programs in the same session. If you’re sharing a screen, your entire desktop will shared, and the shared area will be outlined in red.Click on the desired content you’d like to share.You will be prompted to choose one of your screens/desktops or windows/programs to share.In a call or meeting, move your mouse across the window to display the Call Options.