Hi Sharon,
If your PC or phone has built-in camera, then you can open it directly from the Camera app to take photos. We'd like to know some information for us to provide a suitable solution:
- What is the make and model of your device?
- Are you using a Windows 10 PC or phone?
In the meantime, if you're using a PC, you can check this article for more information about using the camera:
Camera app and webcams help.
Looking forward to your response.