In order to fix the problems, press Alt + Ctrl + Delete key combination, open Task Manager, and close all applications (web browsers, instant messengers, and so on) that may interfere with your webcam. If the issue persists, go to Dell Download Center, identify your computer model, select your operating platform, and download and install the latest drivers and software for your webcam. If the issue persists, use the contact information from the official web page to get in touch with the support team.