Several factors contribute to webcam malfunction on Windows 7:
If you have a fresh installation of Windows 7, you might be missing specific Framework updates required for modern USB video devices (UVC). Ensure you have installed. Without SP1, many modern webcams will fail to initialize properly due to missing system files. 7. Registry Fix (Advanced) webcam not working windows 7
Windows 7 has a built-in hardware troubleshooter that can sometimes detect configuration errors automatically. Several factors contribute to webcam malfunction on Windows
If an app says the camera is busy: