How do I use the Power2Go Express mode (4 cubes) appear on my desktop and how do I disable it?

The cubes are application programs of Power2Go Express mode. They allow you to burn "Audio CD", "Data Disc", "Video/Photo Disc", and "Disc Copy". You can drag files or entire directions to the "Audio CD", "Data Disc", "Video/Photo Disc" dice, click the Rec to begin burning. Also you can double-click on "Disc Copy" cube to start the disc copy function. When one cube (function) starts the burning process, the other cubes are grayed out (disabled).
When Power2Go Express is running, the icon is visible in the taskbar (normally located at the bottom right of your screen). Right-click this icon and then uncheck the "Start Program When System Starts".