It sounds silly, but sometimes the driver is installed perfectly fine, but Windows privacy settings are blocking it.
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| Error / Symptom | Likely Cause | Solution | |----------------|--------------|----------| | "We can't find your camera" | Privacy settings disabled | Enable in Settings → Privacy → Camera | | Code 19 / Code 31 in Device Manager | Corrupted registry | Uninstall device → Scan for hardware changes | | Camera works in Camera app but not in Teams | App-specific permission | Check Teams → Settings → Permissions | | Yellow exclamation mark | Driver conflict | Disable and re-enable device | | Driver install fails with "Hash mismatch" | Driver signature enforcement | Temporarily disable driver signature enforcement (test mode) | It sounds silly, but sometimes the driver is
Expected output: Status: OK