Magical Jelly Bean Keyfinder - The Magical Jelly Bean Keyfinder is a freeware utility that retrieves your Product Key (cd key) used to install windows from your registry. It also has a community- updated configuration file that retrieves product keys for many other applications.
Speccy - Speccy - find the details of your computer's specs. Great for spotting issues or finding compatible upgrades. Download the latest version free.
Mac Product Key Finder - Mac Product Key Finder is a simple tool for recovering lost product keys for mac applications.
CPU-Z - CPU-Z is a freeware that gathers information on some of the main devices of your system : Processor name and number, codename, process, package, cache levels.
Product Key Explorer - Product Key Explorer is a key inventory and recovery software designed for Windows. It's meant to help users recover, find, and backup their activation keys for more than nine thousand popular software programs... read more.
AIDA64 - AIDA64 is a system information, diagnostics and benchmarking solution for Windows PC.