Duplicates
The Duplicate files option scans the selected drive, partition or path and searches for copies of same file stored in different folders.
This is useful in removing redundant, duplicate files stored obscure folders that you may have forgotten about. The files are identified as exact copies by calculating and comparing the checksums of all files in the search path. This means duplicate files can be detected even if they are named differently.
Click here for more information on How to discover and clean duplicate files
Features and Benefits of the Duplicate Finder
- Identifies copies of the same file stored under different names in various locations on your hard drive;
- Allows you to free up space by deleting needless copies that clutter up your disk.

The Duplicate Files option in the Disk Cleaner enables you to run four types of scans.
- All Files - Searches all files extensions for duplicate files (this search include Movies, Music and Pictures category)
- Movies - Searches for duplicate video files with popular extensions such as .avi, .mpeg, .mov.
- Music - Searches for duplicate audio file extensions such as .wav, .mp3, .wma.
- Pictures - Searches for duplicate pictures file extensions such as .bmp, .jpg, .png.
To clean duplicate files in your system
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Click 'Disk Cleaner' > 'Duplicates' tab
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Click 'Select' on desired category
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Select the folders you want to search for duplicate files and click 'Scan'

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The scan progress will be shown...

...and duplicate files will be listed. CSU identifies the following types of files as duplicates:
- Files that have identical checksums and identical filenames
- File that have identical checksums but different filenames
The duplicate finder will NOT display:
- Files that have different checksums but identical filenames
- Identical files will be listed in groups. The name of the newest file is used as the name of the group. Expand the group to reveal the identical files by clicking the '+' symbol.

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Check the files you want to remove and click Clean. This will delete the selected files.


