We need more details to help.
To check if it has drivers installed:
Start
Computer
System Properties
Device Manager
Under Imaging Devices it will have the webcam if its installed,
if not you will see some Yellow sign looking things with excamation marks in them saying unknown device or similar, if so, try the disks that came with the laptop and install the drivers.
You could try using the search function in start and search for camera or webcam or cam to see if anything comes up.
Ussually Laptops come with the drivers pre-installed, so you will have to see what program it uses to configure it, you could always just try video chat on Omegle or similar to see if it picks up that you have a webcam.