Microsoft Teams share screen not working on Mac? Try this


Milan Stanojevic
by Milan Stanojevic
Deputy Editor
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Teams share screen doesn't work on Mac

Worried that Microsoft Teams share screen is not working on Mac? Don’t be, you’re not the only one facing this issue.

When talking about Teams, most users try to do their daily routine by simply opening it and joining a meeting. Afterwards, they select the Share screen button and choose to present their entire desktop, a PowerPoint file, a window, or a whiteboard.

That’s how it should usually work, yet Microsoft Teams gets its fair share of issues these days.

Other users only get a pop up and discover that share screen is not working on Mac. In some cases, Microsoft’s latest updates can cause this. After all, several other apps are behaving weirdly on Apple’s macOS Catalina.

The idea that an update broke screen sharing on Microsoft Teams for Mac users is far from pleasant, but we cannot rule it out. Instead of waiting for things to solve themselves, start applying the below solutions one by one.

They might take some time, but you should be in the clear afterward.

What to do if Microsoft Teams share screen is not working on Mac?

1. Edit security permissions

Edit security permissions

  1. Click the Apple menu.
  2. Then, go to System Preferences > Click Security & Privacy > Privacy tab.
  3. Click Screen Recording.
  4. Click the lock icon to make changes.
  5. If required, enter your admin password.
  6. Finally, click the checkbox next to Microsoft Teams.
  7. A notification window will ask you to restart it. Agree.
  8. Then, try again and see if the issue persists.

2. Select NetAuthAgent from Activity Monitor

Utilities Folder

  1. Start by clicking Applications.
  2. Then, click the Utilities Folder.
  3. Open Activity Monitor.
  4. Look for the process called NetAuthAgent.
  5. In case of finding it, select it.
  6. Click Quit Process.

Is Microsoft Teams already ticked as an allowed app in Security & Privacy? Activity Monitor is a special utility app included in macOS.

It’s ideal to diagnose and troubleshoot Microsoft Teams sharing screen issues, so give it a try too.


Tired of constant issues in Microsoft Teams? Check out these other great collaborative programs!


3. Update Microsoft Teams desktop app

Update Microsoft Teams

Software updates are released to address security issues when they occur and such minor bugs discovered in the software.

The Microsoft Teams desktop app automatically updates itself, but you may also check to see if there is any new version available. Just click your profile picture and select Check for updates.

Make sure that you’re updating as much as you can.


4. Check for macOS Updates

Update macOS

If the issue still continues to occur, you may want to follow this path: Apple menu > System Preferences > Software Update. If there is an update available, click Update Now.

Your Mac will then download the update and restart to complete the procedure. Hopefully, this will help you address the problem.

Some Microsoft Teams users also describe how quitting all running apps and then trying again or force quitting the app helped.

If you have any questions, reach out to us by using the comments area from below.

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