ActivIcon

This is a free, comprehensive tool that you can use to personalize all of your system's icons with just a few clicks. The program displays all of the icons installed on your system by category, and allows you to change them for your own. From desktop icons, My Computer, the recycling bin, documents, Explorer... all the way to the start menu icons and tools, disk units, folders... truly, everything is fair game. The program also allows you to undo changes and restore the original icons to Windows. To install the program, just press RUN once you've executed the downloaded file.