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. Another feature is the ability to retrieve product keys from unbootable Windows installations. Number of supported programs: 300. Works with 64-bit systems! If you need something more powerful, compare Magical Jelly Bean Keyfinder with a tool called "Recover Keys". This advanced product key finder is not free, however, it doesn't cost much for what it does. Features and Highlights Command line options - /save /savecsv /close /hive /file Load Hive option - allows you to load the registry hive of another Windows installation. To use, put the hard drive in a working machine (must also be Windows 2000, XP, Vista, Windows 7, or Windows 8) or use Windows PE (not tested, should work) and click Load Hive. Then point it to the dead Windows install. If you're using Windows Vista, Administrator rights are required for this feature. You may have to right-click on the Keyfinder and run as Administrator. Improved Save