Don't lose your license certificate file or license key keep it in a safe place in case you need to reinstall the software. Otherwise, you can install the software only as a trial.

You must have a valid license certificate file or license key to install the software. License key: If you purchased a boxed version of FileMaker Pro Advanced, your unique, 35-character license key is in the box.If you signed up for a FileMaker Cloud subscription or free trial, this file is available from the Subscription page in FileMaker Customer Console.Your license certificate file is available from that page. If you purchased FileMaker Pro Advanced as a download from the FileMaker Store website, you received an email with a link to your Electronic Software Download page.License certificate (.fmcert) file: This file is available for you to download, along with the FileMaker Pro Advanced installer, depending on how you purchased the software. Depending on how you purchased FileMaker Pro Advanced software, you received either a license certificate file or a license key.

Retrieve filemaker pro license key