A. To speed up desktop refresh and its creation, the desktop icons are cached. Sometimes this file can become corrupted and will lead to the icons on the desktop being blank or incorrect.
To resolve this you can delete the icon cache file, %SystemRoot%\ShellIconCache. Before doing this you must stop Explorer (right click on Task bar and stop all instances of Explorer.exe).
C:\> attrib %systemroot%\shelliconcache -h
C:\> del %systemroot%\shelliconcache
Restart the computer
This can also be accomplished using the Repair tab of the TweakUI utility.