You can also change a Mac's lock screen image by replacing the "lockscreen.png" file in the "Desktop Pictures" folder. ... a custom message and a new avatar icon to your Mac computer's lock screen.

Windows gives you the ability to take a snapshot of what is shown on your computer screen and save it as a file. You can then view this image at a later date to see what your screen looked like or ...

An icon in the shape of a lightning bolt. Impact Link The login screen is the first thing you see each time you start your Windows 10 computer, so you may want to customize it. You can set it to ...