a little bit of google and found this by Vampire, i think the problem is similar to yours in regards to "connect a webcam to start" meant was the Dell Webcam is not enabled/turn on ~
"Windows 8 operating system has 'Camera' app. You can access the 'Camera' app from the start screen. In case you are not able to see the 'Camera' app on the start screen, you can download it from 'Windows Store Apps'.
From the Start screen, click the 'Camera' tile to open the app
If the app asks to use your camera and microphone, choose 'Allow'
Adjust the settings, if desired
To snap a photo, click anywhere on the screen
The camera app saves all your snapped photos and videos in a folder called 'Camera Roll' in your Pictures library.
Alternative ways(recommended)
Please follow the steps below to turn on the Dell Webcam:
1.Make sure to start the Dell Webcam Central in a well-lighted area.
2.Click Start.
3.Click All Programs.
4.Click Dell Webcam.
5.Click Webcam Central to start the program.
You may also refer to the link for Dell Webcam related issues:
http://dell.to/RibqxG"
see if that helps