These Software Product Key Finders will reveal, recover, save product keys & licenses of Windows, Office, Games, Installed software on your computer.

Your Windows 10 product key may be necessary to unlock all features -- but it's not easy to find. Here's where to look for the product key (even if it's lost).

Reinstalling software? Older versions of Windows and Microsoft Office require product keys. Here's how to find them before your PC goes kaput.