Windows 8.1 - Allow the use of the camera from the lock screen
Windows 8.1 allows you to make use of your laptop's webcam from the lockscreen, but first you will need to activate this feature:
- Open the Charms bar (Windows key + C) > Settings.
- Click on Change PC Settings > PC and devices.
- Go to the "Lockscreen" section.
- Turn on "Swipe down on the lock screen to use the camera".