In Microsoft Teams, you can show your desktop, a specific app, presentation, or any file while in a meeting.

  1. Select Share Share screen button .

  2. Select what you want to share:

    • Desktop lets you show everything on your screen.

    • Window lets you show a specific app.

    • PowerPoint lets you show a presentation.

    • Browse lets you find the file you want to show.

  3. After you select what you want to show, a red border surrounds what you're sharing.

  4. Select Stop sharing to stop showing your screen.


Source: Microsoft