In order to use your laptop's webcam, you first need to install the appropriate driver for it. Also, to use the Acer Crystal Eye Webcam application, you need to install a compatible version with your computer's model. To do this, you need to visit the Support website of the manufacturer, select your computer model and be sure to download the compatible versions for your OS. Be sure to uninstall the old version of Acer Crystal Eye Webcam software before you install the new one.