Fast Duplicate File Finder FREEWARE will help you find fast all duplicate files in a folder and its sub folders. The application will compare the content of your files so it will find duplicates even if they are using different file names. The Proofessional version can even find similar files regardless of their file types. It will analyze the content of the files in order to find similar files and not just file attributes like name and size as the standard duplicate file finders do.

The duplicate remover uses fast binary comparison algorithm and has internal preview supporting a lot of image, video, music and text file formats. You can also preview the files in binary mode.

When the scan process is finished the program shows you all the found duplicate files in groups and can automatically mark the older files for deletion. The auto mark algorithm has advanced settings to exclude from auto mark files with user specified extensions, file sizes, file dates and file names. You can also set which folders you want to exclude from the auto mark. There is an option to protect system files and folders which is recommended to be turned on.

Features
* Find DUPLICATE files or find SIMILAR files in user specified folders, hard drives, computers or entire networks
* 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
* Powerful filter and exclude from auto-check options
* Multi-language file system support

What's New
* You can now add multiple folders at once using the enhanced Browse for Folder dialog.
* Added new option "Remove from list groups containing single file after delete/move".
* Added new option "Show user checked files in different color".
* Added new option "Show user checked files in bold font".
* Added new Auto Check option to check "Files with newer dates".
* Added new Auto Check option to check "Files with bigger sizes" in similarity mode (available only in Pro version)
* Added folder popup menu "Disable self-Scan For This Folder". This is useful if you want to scan two (or more) folders against each other. (available only in Pro version)
* Export the results to XML or CSV file. (available only in Pro version)
* Added grid popup menu item "Check All Except Excluded" (CTRL+E) which will check all files except the excluded ones from the Advanced dialog in Auto-check options or files whose folder is excluded from auto-check.
* Added grid popup menu item "Properties" which shows windows explorer file properties window.
* Ctrl+K checks the selected files (also available as a grid popup menu)
* Ctrl+U unchecks the selected files (also available as a popup menu)
* Quick rename files using F2 or Rename grid popup menu.
* Left and Right arrow keys can now be used to navigate to previous/next duplicate in the big preview window.
* Enter and 'C' key checks/unchecks the duplicate in the big preview window.
* Added line nubmers in duplicate results grid.
* Fixed column sorting on all columns.
* There are now two separate columns for File Name and Folder.
* Other small GUI fixes and enhancements.

This free version has the following limitations

• Searching for similar files will show you only the first 10 groups (feature not limited in 100% duplicate search mode)
  
• You can not use the Filter functionality
  
• You can not delete or move the selected duplicate files when searching for similar files (feature not limited in 100% duplicate search mode)
  
• You can not use Open with Associated Program and Locate in Explorer popup menu items when searching for similar files. (feature not limited in 100% duplicate search mode)