When you press a letter on the keyboard the focus is shifted to the icon starting with that alphabet. Or when you select an icon with your mouse pointer the icon gets focused with a pale white box.

Several Windows users at some point or another have experienced the problem of their Desktop icons rearranging or moving after reboot. If your Desktop icons keep jumping, bouncing, moving or ...

You can change nearly any desktop icon on both Mac and PC. To change desktop icons on a Mac, open the "Get Info" menu and paste in the picture you want to use. On a PC you'll need to make a .ICO file, ...