File Locations are enabled if you enable searching for Files or Compressed Files. You may select whether you want to search within your My Documents (including User Settings), your My Computer (which includes all of your hard drives), or a Custom folder (or folders) of your choice. Once specified, Identity Finder will search for files (either Common File Types, All Filterable File Types, Custom File Type List, or All Files) and compressed files within that folder and all of its subfolders. Your currently selected option will be highlighted in orange.