As you might have observed, Windows 8.1 has two Lock Screens. One of them is your personalized lock screen, which you see when you lock your PC or tablet. The second one is the default Lock Screen. Every time you sign out, you see the default image with color stripes and the blue login screen behind it.
While you are able to customize your personal Lock Screen via PC Settings, Windows 8.1 provides no way to change the background image and color of the default Lock Screen.
I would like to share with you a simple way of changing the appearance of the default Lock screen.
