Bad news
I confirmed what I had suspected. Your video cam hardware has failed
As fyi... and to see the data yourself:
> Rerun USBdeview
> Click on the third column header
Device Type. (This alpha sorts the entries by their Device Driver type)
> Scroll to the bottom where
Device Type= Video. That's the last entry in the registry for your USB web cam
> Look in the next column over (labeled
Connected). You'll see it says
NO. That means the cam hardware isn't connected (I.e. the cam is not being detected). That would happen if
==> Web cam powered off (do you have on/off switch for the web cam)
==> The cam can be disabled/enabled in the BIOS setup menus (you can look but I've never found a cam option among BIOS options)
==> The cam hardware failed