Advanced users can sometimes find the encrypted key in the Windows Registry under HKEY_LOCAL_MACHINE\SOFTWARE\FileMaker . 5. Should You Upgrade Instead?
: Keep your license key in a safe place. If you lose your license key, you might need to contact Claris or the place of purchase for assistance. It's also important to note that license keys are typically for a single version of the software and might not be transferable to newer or older versions. Filemaker Pro Advanced 12 License Key
If you have a valid key, you should be aware of technical hurdles when installing version 12 on modern hardware: Advanced users can sometimes find the encrypted key
You may be able to view the current key by going to Help > About FileMaker Pro (or FileMaker Pro Advanced) on the computer where it is currently active. Installation Requirements : Keep your license key in a safe place
Information regarding FileMaker Pro 12 Advanced license keys covers retrieval methods, installation requirements, and the current support status for this legacy software.
Running version 12 in a modern environment presents several challenges: