(and how to change the desktop icon text color from white to black)
What’s going on? The symptoms.
Typically you have a few icons on your desktop, each one of them having a label with some text indicating what the icon is referring to. When a default Aero theme is active this text has by default a white foreground color and a black shadow. In the first figure you see an example of how this looks like on Windows Server 2008 R2.