Hi aryank3
I am Dave, I will help you with this.
1
Is the webcam light on even though the webcam is not working?
2
Try pressing Fn + F8, does that turn on the webcam?
Is there a privacy slider on your webcam that may be closed?
3
If neither of those works for you, I need more information on your laptop, click your Start Button, then just type msinfo and press Enter, please provide a screenshot of the resulting System Information window