Have you ever had to reinstall Windows and all the software you own, just to find out that you’ve lost the serial number of some of those packages. Well go grab Serial Number Revealer right now and run it on your machine. It’s Free and can reveal the installed keys for more than 700 pieces of software, if any of them are installed on your machine. You can then save these in a text file and/or print them for safe keeping. While you’re there you might also want to grab Game Key Revealer, it does the same thing for your purchased games.