You can turn on the camera on your Windows computer immediately using the built-in Camera app, or another app that uses it.

Windows 11 has come with a new multi-app camera feature. With this feature enabled, you can allow multiple apps to use a camera simultaneously on your Windows 11 PC. Earlier, we weren’t able to use a ...

You can scan a QR code using the camera on your smartphone, tablet, or computer — however, you may need to download an app.