Since it does not show up you must have some other test?
For example I've used a LIVE CD called UBUNTU that helps me see if a device is there or gone.
So I have a Dell Studio (service tag: 8P2SLH1) it's about 2 years old. I had to reformat the hard drive a couple months ago because I got a bad virus. I re-installed all my drivers and whatnot using the CDs that came with my laptop and everything seemed fine. However, my webcam would not turn on during start up like it used to do. I tried installing the drivers for it using the CD and Dell Drivers website, but the webcam still won't work. My computer doesn't even recognize any kind of webcam driver or unknown driver when I open up the Device Manager. I'm pretty sure the webcam itself is not broken. What can I do to fix this? I am no longer insured under Dell so I can't use their online tech help.