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Camera & Webcam

Webcam Works in One App But Not Another

AG
Againly Tech Team
April 16, 2026

Webcam Works in One App But Not Another

It’s the most frustrating bug: your camera works in the "Camera" app, but gives a black screen in a 1:1 call on Teams. Againly fixes this automatically by repairing the "WDM" (Windows Driver Model) link that connects specific apps to your hardware.

Why this happens

  • API Mismatch: One app is using "Media Foundation" while the other is using old "DirectShow" APIs.
  • App Cache Corruption: The problematic app has a corrupt reference to your camera's resolution capabilities.
  • Background Hooks: Another app is "listening" to the camera in the background, preventing a second app from gaining control.

Fix it manually

  1. Close All Video Apps: Use Task Manager to kill Chrome, Zoom, and Teams entirely.
  2. Reset App Cache: In Windows Settings > Apps, find the failing app > Advanced options > Reset.
  3. Update the App: Ensure you aren't running an outdated version of Teams or Zoom.

Fix it automatically with Againly

Againly "Unlocks" your camera from background processes, ensuring the app in focus has 100% priority access to the hardware.

Instant Resolution

Fix this problem in 46 seconds

Stop wrestling with registry keys and driver settings. Let Againly automate the fix for you right now.

Download Againly Free →

Works on Windows 10 & 11 • No credit card required

Webcam Works in One App But Not Another | Againly