Hello, and thanks for reaching out! I'm Nals, and I'll be happy to assist you today.
Do you have any third-party antivirus? If so, you can temporarily disable your antivirus software and check if the camera starts working.
Inspect the camera lens located above your screen. Ensure that any privacy slider covering the lens is open to allow access to the webcam. Check the function keys (F1 - F12) on your keyboard if you find a key with a camera icon, press that key alone or with the Fn key to activate your webcam.
If the above steps don't resolve the issue, it might be a driver problem. Visit the support website for your specific laptop model on the manufacturer's website. Locate the download section for your model and find the latest version of the webcam drivers. Download and install these drivers following the manufacturer's instructions.
Regards,
Nals