File Locations are enabled if you enable searching for Files. You may select whether you want to search within your My Computer (which includes all of your hard drives), your My Documents (including User Settings), your removable drivers (any drive connected to your computer via USB), Custom Folders of your choice, or entire other Remote Machines. Once specified, Identity Finder will search for files (for example Common File Types or a Custom file type list) and optionally Compressed Files within those drives or folders and all of their subfolders. Your currently selected option will be highlighted in orange.
Note: You cannot select multiple buttons in the File Locations group. If you want to search multiple disparate locations, simply use the Custom Folders button.