If you are using your PC for a long time, there is a pretty high chance that you may be storing duplicate files which include music files, documents and images, however finding and deleting duplicate files is a pretty tedious task and is very seldom done manually. Fast Duplicate File Finder is a handy freeware that will help you find all duplicate files in a folder and its sub folders. The applications will compare the content of your files so it will find duplicates even if they are using different file names. Related: Remove Duplicate Emails, Contacts and Calendar Entries from Outlook ^[1]

The Duplicate File Finder uses binary comparison algorithm which allows it to check for duplicates even if file names are different, you can also preview image files, video files, music files and text files before you move them to the Recycle bin, another folder or permanently delete it. 

Fast Duplicate File Finder Features

• Find all duplicate files in user specified folders, drives or entire computers.
• Fast binary comparison algorithm
• Internal preview supporting images, videos, music, text and binary files
• Older files can be automatically marked for deletion
• Duplicate files can be moved to Recycle Bin, custom folder or deleted permanently
• Support for all kinds of removable media – USB drives, diskettes etc.
• Has intuitive interface and rich documentation
• Process priority settings that will let the application scan in your computers IDLE time
• Protection for system files and folders that will prevent damages to your system files
• Automatically locate duplicate files in Windows Explorer
• Open file with associated program
• Multi-language support

Definitely a freeware worth downloading to keep your PC free of duplicate files. Download Fast Duplicate File Finder ^[2]