Use apps like AMCap , OBS , or the built-in Windows Camera app to test the stream.
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If the camera is appearing with a yellow exclamation mark or not working, you can force a reinstall: Right-click the button and select Device Manager . Expand the Cameras or Imaging devices section. Use apps like AMCap , OBS , or
Right-click the device (may show as "USB 2.0 Camera") > > Details . Select Hardware Ids from the dropdown. Use apps like AMCap