If you are looking for a key for the version of Navigator 12 (typically for PC/Windows), you generally do not need a manual key .
version based on OpenStreetMap (OSM) data. A license key is only mandatory if you have purchased the commercial version, which includes professional TomTom maps. MapFactor Forum Licensing Options for Navigator 12 Free Version
In the official installation, the key is usually embedded within the software. When installing via the official MapFactor Setup Utility , selecting the "Navigator FREE" option automatically applies the necessary license.
Launch the program specifically using the shortcut labeled "PC Navigator 12 FREE" . This version has a built-in key and does not require manual entry.