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Press the Windows key + R at the same time to bring up the Run command. Type microsoft.windows.camera: and press Enter.
This will open the built-in Camera app immediately.
Method 4: Open Windows 10 Camera App from Command Prompt
If you’re at the Command Prompt, just type the following command and hit Enter to launch the Camera app.start microsoft.windows.camera:
Still Can’t Find or Start Camera App
If you’re unable to open the Camera app using the above methods, it’s possible that the Camera app was uninstalled from your computer. In that case, you then need to install a fresh copy from Windows Store.
That’s it!