Hi all
This is the fix for your problem, I had the same problem with packard bell.
Go to start and type cmd , but do it as administrator
Type in cmd
sfc /scannow
it takes a few minutes .
Then shut down your laptop , disconnect power , disconnect battery
wait 30 minutes .
Then boot your laptop now will the camera show in your device manager .
And is your problem fixed.
Then install your webcam software eventuallt update your driver if you find it.
Now you can enjoy your webcam
greetz
petrove