Think you know everything about your computer? Find out with the free Belarc Advisor. This neat little utility builds a detailed profile of all installed hardware and software on your computer and displays it in your Web browser. It provides details down to the serial number of your main circuit board and the secondary cache of your processor. Best of all, it identifies every piece of software installed on your computer and shows you the directory where it is located. Try it and find out what you don’t know about your PC.