Teams not detecting camera or microphone: what to check

Why isn't Microsoft Teams detecting the camera or microphone?

The cause may be an incorrect selection within Teams, system permissions, another application using the device, physical connection, driver, enterprise policy, or browser failure. It's a good idea to test your device in Teams settings and another app before reinstalling or changing policies.

Risks to review

• Change general privacy permissions without reviewing the affected device.
• Install drivers from unauthorized sites.
• Disable browser or system security controls.
• Arriving at a critical meeting without previously testing audio and video.

Safe recommendations

1. Confirm the selected device in Teams and run a test call.
2. Close applications that may be using the camera or microphone.
3. Review system and browser privacy permissions.
4. Test the device in another application to isolate hardware from software.
5. Update Teams, system and drivers using official sources.
6. Maintain an alternate device for critical meetings.

When to seek specialized help

• Enterprise policy prevents changing permissions.
• The bug affects multiple computers or started after an update.
• The device also does not work in other applications.