I can't currently share my screen - it fails every time. How do i fix this?

Question

I can't currently share my screen - it fails every time. How do i fix this?

Marcus Mcgrigor 0

Hello,

I am having problems sharing my screen on Teams. Every time I attempt show colleagues what i am working on etc, it says your camera failed and no one can see my screen. I use Teams via my browser usually (Chrome) and have never had an issue until 2 days ago. What is the exact problem and how to I fix it?

I would appreciate support as soon as possible as I am presenting screen at a conference next week!

Thank you,

Marcus

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2 answers

Your answer

Answer 1

Phoebe-N 10,690 Microsoft External Staff Moderator

Hello @Marcus Mcgrigor

Welcome to the Q&A Community!

Thank you for contacting us regarding the issue you are experiencing with screen sharing in Microsoft Teams.

To accurately diagnose the root cause, please provide the following information:

The operating system you are using (for example, Windows 10, Windows 11, macOS).
Have you tried using another browser or incognito mode?
Whether you are using Microsoft Teams exclusively through the web browser or if you also have the desktop application installed. Does the issue happen there as well?
A description of when the error occurs. Does the message appear immediately after you click “Share” or after selecting a specific screen or window? A screenshot would be of great help!
Any recent changes to your system, such as browser updates, operating system updates, or installation of new extensions.

Based on the information provided so far, here are the recommended steps to resolve the issue:

Verify Browser Permissions

Open Chrome settings and navigate to Privacy and Security, then Site Settings.

Locate the Microsoft Teams site and ensure that permissions for Camera, Microphone, and Screen Sharing are enabled.

Clear Cache and Cookies

Navigate to Chrome Settings, then Privacy and Security, and select Clear Browsing Data.

Remove cached images and files as well as cookies.

Clear the Teams cache with instructions in this article Clear the Teams client cache - Microsoft Teams | Microsoft Learn

Update Chrome and Teams

Ensure that Chrome is updated to the latest version. If you are using Teams on the web, refresh the session or sign out and sign back in.

Please confirm the requested details and let me know if any of the steps above resolve the issue. If the problem continues, I will provide advanced troubleshooting options.

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Marcus Mcgrigor 0 Reputation points

2025-11-25T14:35:08.13+00:00
The operating system I am is macOS

Have you tried using another browser or incognito mode? No I shouldn't have to.

Whether you are using Microsoft Teams exclusively through the web browser or if you also have the desktop application installed. Does the issue happen there as well? I only use the browser version.

A description of when the error occurs. Does the message appear immediately after you click “Share” or after selecting a specific screen or window? A screenshot would be of great help! It occurs after selecting the Entire Screen option - it is the only one that doesn't work. After I click this it instantly stops sharing anything and a notification pops up saying "yout camera is not working". My camera works fine when i am not sharing.

Any recent changes to your system, such as browser updates, operating system updates, or installation of new extensions. - I was onboarded to my company's subscritption two or three weeks ago...
Marcus Mcgrigor 0 Reputation points

2025-11-25T14:44:20.78+00:00

fdgdfg d
Marcus Mcgrigor 0 Reputation points

2025-11-25T14:46:00.1533333+00:00
The operating system I am using is macOS

No I shouldn't have to?

I only use the browser version.

It occurs after selecting the Entire Screen option - it is the only one that doesn't work. After I click this it instantly stops sharing anything and a notification pops up saying "yout camera is not working". My camera works fine when i am not sharing.

I was onboarded to my company's subscritption two or three weeks ago...
Phoebe-N 10,690 Reputation points Microsoft External Staff Moderator

2025-11-26T10:10:47.7933333+00:00
Hello @Marcus Mcgrigor

Thank you for providing additional details. Based on your description, the issue occurs when you attempt to share your entire screen using the browser version on macOS in Google Chrome. After selecting the “Entire Screen” option, the sharing stops immediately, and a notification appears stating that your camera is not working. Since your camera works normally when you are not sharing, this behavior is typically related to macOS permissions or Chrome-specific settings.

Please follow the steps below to troubleshoot and resolve the issue:

Verify macOS Privacy and Security Permissions

On macOS, screen sharing and camera access require explicit permissions.

Navigate to System Settings > Privacy & Security > Screen Recording and confirm that Google Chrome is enabled for screen recording.

Also check System Settings > Privacy & Security > Camera to ensure Chrome has permission to use the camera.

If these permissions are not granted, the system will block simultaneous screen sharing and camera usage.

Confirm Chrome Permissions

Within Chrome, verify that the site you are using has permission to access the camera and microphone:

Click the padlock icon in the address bar while on the site.

Ensure Camera and Microphone are set to “Allow.”

Update macOS and Chrome

In case you haven't, kindly ensure that both macOS and Google Chrome are updated to the latest versions. Outdated software can cause permission conflicts and compatibility issues.

Test in Incognito Mode

Browser extensions can sometimes interfere with screen sharing. Testing in an Incognito window can help determine if extensions are contributing to the issue.

Additionally, since this may involve system-level permissions and company policy settings, I recommend reaching out to your organization’s IT administrator. They can confirm whether any restrictions or configurations within your company’s subscription might be affecting screen sharing and camera functionality.

Please let me know once you have tried these steps or if you need further assistance. I am here to help.
Phoebe-N 10,690 Reputation points Microsoft External Staff Moderator

2025-11-27T13:40:59.6933333+00:00

Hello @Marcus Mcgrigor

Good day! I hope you're doing well!

It has been a while and i am writing to see how things are going with this issue. Have you had a chance to check the reply provided?

Please feel free to let me know if there are any updates or if you need any further support.

Thank you so much for your time and kindness.
Phoebe-N 10,690 Reputation points Microsoft External Staff Moderator

2025-11-29T14:02:53.1566667+00:00

Hello @Marcus Mcgrigor

I hope this message finds you well.

This is my second follow-up to check whether your issue has been resolved. In case your problem persists or if there are any new issues, please let me know. I am happy to assist.

While waiting for your response, I will continue tracking other customer questions on the forum to ensure everyone receives timely support. If you have additional questions, please feel free to tag my name in your reply so I can assist you promptly.

Looking forward to hearing from you soon.

Answer 2

It sounds like you're experiencing issues with screen sharing in Microsoft Teams, particularly in the Chrome browser. Here are some potential causes and resolutions:

Camera and Permissions: Ensure that your browser has permission to access your camera and screen. You can check this in Chrome's settings under Privacy and Security > Site Settings > Camera and Screen Sharing.
Browser Compatibility: While Teams works in browsers, using the desktop app can often provide a more stable experience. If possible, try downloading and using the Microsoft Teams desktop application.
Hardware Acceleration: If your device does not support hardware acceleration, screen sharing may fail. You can check if hardware acceleration is enabled by going to chrome://gpu/ in Chrome. Look for any indications that say "Software only" or "hardware acceleration unavailable".
Update Teams and Browser: Make sure that both your Teams application (if using the desktop version) and Chrome are up to date. Updates often include bug fixes that can resolve issues like screen sharing failures.
Clear Cache and Cookies: Sometimes, clearing the browser's cache and cookies can resolve unexpected issues. You can do this in Chrome by going to Settings > Privacy and Security > Clear browsing data.
Network Issues: Ensure that your internet connection is stable. A poor connection can lead to problems with video and screen sharing.

If these steps do not resolve your issue, you may want to check the Teams client logs for more information or contact your IT support for further assistance.

References: