You can download all the drivers from here: 3521</b>-drivers-free-download">Dell Inspiron 15 3521 Drivers for Windows 7
here is solution related to dell webcam and dell webcam manager
http://youtu.be/YFY59F36RhQ
Hi,
Follow the link below, under the Table of Contents: click on 2: Troubleshooting Webcam Issues, this will guide you to get the webcam issue resolved.
http://support.dell.com/support/topics/global. ...
... laptops with built-in web camera a little different than other manufacturers ...