Software & Apps Windows ProduKey v1.93 Free Product Key Finder Tool Review Use this free tool to find product keys for several Microsoft programs by Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated on May 28, 2020 Windows The Ultimate Laptop Buying Guide Tweet Share Email ProduKey is an excellent free key finder program. It's uncomplicated and instantly displays serial numbers and product keys. If you're getting ready to reinstall Windows (or nearly any other program) but can't locate the product key or serial number required to install it, ProduKey can help. It will automatically display the product keys and serial numbers for many different Microsoft-based applications. Download ProduKey What We Like Doesn't require installation (portable). Instant display of product keys for several Microsoft programs. Ability to discover product keys from remote and offline registries. Copy product keys or export them to a file for backup. What We Don't Like Lack of support for popular non-Microsoft programs. Default display of Product ID and Product Key could be confusing to beginners. This review is of ProduKey v1.93. Please let us know if there's a newer version we need to review. What ProduKey Finds These are the major operating system and software programs ProduKey finds product keys and serial numbers for: Finds Keys for Operating Systems: Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, and Windows 2000Finds Keys for Other Software: Microsoft Office 2013, Office 2010, Office 2007, Office 2003, Exchange Server, and SQL Server Read our Key Finder Programs FAQ for more information on key finder programs in general. Thoughts on ProduKey ProduKey is an excellent free key finder as long as you're only after a Microsoft product key. Product keys are displayed right away when the program is launched. Something you might like most about ProduKey is how easy it is to load keys from external Windows installations or from other computers on your network. This feature makes ProduKey valuable as a way to extract the Windows product key from a damaged computer where booting into Windows is impossible. My biggest concern with ProduKey is that the product ID, not the product key, is displayed first in the results window. There's little use for the product ID—it's the product key that's necessary when installing the program. This might be confusing if you don't know the difference. NirSoft seems to regularly update ProduKey which is a good sign that it will be around for a while. I have no qualms about recommending ProduKey to anyone needing to find a Microsoft product key, especially if that key is located on a networked or crashed PC. Download ProduKey ProduKey Alternatives Try another free key finder program if you didn't find what you were looking for with ProduKey. Another program might be able to find the serial number or product key for the specific application you're after.