Product Key Finder has only one purpose, which is to display your Windows Product Key. It sounds like a small thing, but if you've ever had to reinstall Windows on your computer and couldn't find the product key in your pile of paperwork, you'll know this simple, free app can solve a big problem, especially if you're not comfortable digging around in the Registry.
Like many free utilities today, the Product Key Finder installation prompts you to also install additional software, but the actual Product Key Finder installation takes only a few seconds and you're set. When executed, Product Key Finder opens a dialog that shows the product keys for several packages installed on your system, but by no means all of them. The Microsoft keys are shown, as are a few other software packages such as applications from Adobe. In our tests, the results were quick and the information was correct.
While there are other products on the market that provide a more complete list of installed software and their product keys, Product Key Finder works exactly as advertised, displaying the Microsoft product keys you need to reinstall your Office or Windows software. When you don't need it, it can sit quietly on your drive or utility disk until you lose that little sticker again. When you do need it, this free program can be invaluable.