Best Duplicate File Finder for Windows Computer

In this post, you will see the best duplicate file finder for Windows computer and how to use this handy tool to safely and quickly scan all large duplicate files and remove them

Lucas

By Lucas / Updated on July 11, 2025

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Why do users employ duplicate file finder?

Use a duplicate file finder to efficiently scan your hard drive for redundant files. Over time, downloading the same item multiple times can take up significant storage space. These tools are particularly effective at identifying duplicate files, such as multiple versions of the same image in different sizes.

The usefulness of Duplicate File Finder becomes apparent in the following situations:

★ Release disk space: Redundant files can consume a substantial portion of your computer's hard drive or SSD if they are not removed. This accumulation has the potential to decrease the amount of space available for new files, applications, and critical system processes. Utilize the Duplicate File Finder to detect and eliminate these superfluous duplicates, thereby releasing disk space on your computer.

★ Preventing clutters: Files with duplicate names, particularly those with distinct names, can contribute to clutter. This is particularly true when working with multiple versions of the same document or media asset. The Duplicate File Finder assists in the identification and management of these duplicates, thereby reducing the likelihood of errors, such as the modification of obsolete versions of documents.

Enhance system performance: The overall performance of your computer can be slowed by the presence of an excessive number of duplicate files. The operating system's ability to locate and load critical files is impeded by the presence of redundant data. The removal of duplicates can enhance the responsiveness of the system and reduce the launch time.

How to choose a duplicate file finder for Windows

There are many of duplicate file finder options available; however, which one is the most effective? Certain factors must be considered when selecting the most effective duplicate file detector for Windows 11/10, such as:

  • Compatibility: It should work seamlessly with both internal hard drives and external devices.
  • Comprehensive Scanning: The tool must support a wide range of file types, including images, videos, audio files, and documents, to ensure all duplicates are identified.
  • Accuracy: Reliable identification of duplicates is crucial to avoid false positives.
  • Flexibility: Users should have control over which duplicates to remove, allowing for customization based on individual needs.
  • Scan Customization: The ability to target specific folders or file types for scanning enhances efficiency and precision.

AOMEI Partition Assistant for Cleanup is a disk partition cleanup software trusted by millions worldwide. It's an excellent PC Cleaner utility which is specifically designed to be an effective junk file cleaner for PC, meticulously scanning your system to identify and remove a wide array of unnecessary files that can slow down your computer and occupy precious disk space.

This tool intelligently analyzes your system for common junk file categories, including system junk, browser junk (cache, cookies), application junk, and registry junk. This ensures a safe yet thorough cleaning process, making it accessible even for users who aren't tech-savvy.

It is imperative to emphasize that AOMEI Partition Assistant for Cleanup is capable of intelligently deleting large files by type if your drive is laden with numerous large files that consume a significant amount of space, and their identification is a difficult task. This strategic approach further conserves storage space on your computer.

AOMEI Partition Assistant for Cleanup

Free Up Disk Space To Keep Your PC Running Smoothly and Efficiently

Now that you know what is the best duplicate file finder for Windows 10, please download it to see how it works.

Step 1. Initiate Find Duplicate Files. Install and launch AOMEI Partition Assistant for Cleanup. Click the "Find Duplicate Files" tab.

Find Duplicate Files

Step 2. Select a path to scan duplicate files. You can either click "Scan Now" to start the scan of your system C: drive. Or, click "Custom Scan" to manually select paths to be scanned. (Here, we take the "Custom Scan" as an example.)

Custom Scan

Step 3. After clicking "Custom Scan", all local and external drives on your PC will be displayed. You can also click the "Add Path" button, and then a browse folder window will pop up. So you can add more paths on this PC, like Desktop, Downloads, and other folder paths.

Add Paths

Step 4. Once necessary paths are added, you can click the "Scan Now" button to start the scan process.

Scan Now

Step 5. The scan process might take time. After the scan is complete, all duplicate files will be listed. You can click the button behind to locate them.

Locate Duplicate Files

Step 6. Select duplicate files to start deletion. You can either manually select duplicate files, or click the "Smart Select" button to automatically select unnecessary duplicate files to delete.

Tips: If the "Smart Select" is ticked, only the oldest duplicate file will be unticked. It means that all duplicate files except the oldest one will be ticked to delete. (The oldest file means the file that was created first. This file will not be deleted. All other duplicate files are considered copies of the oldest file. )

Smart Select

If you manually select all copies of duplicate files, you will get a pop-up warning window to keep at least one copy of the duplicate files. If you indeed want to delete all copies of duplicate files, you can click "OK" so all copies of duplicate files will be selected to delete.  

Warning

After unnecessary duplicate files are selected, please click the "Clean Now" button to start the deletion.

Clean Now

Step 7. Delete successfully. The deletion might take time. After the process is finished, the selected files will be deleted, and you will get a cleaning completed window displaying how much data you deleted in total. 

Clean Completed

Conclusion

A duplicate file finder that is dependable is a potent instrument. It not only contributes to a more efficient and organized system but also helps liberate up valuable disk space. This document has provided you with information regarding the best duplicate file detector for Windows--AOMEI Partition Assistant for Cleanup. If you are in search of such a program, test it following the instructions provided in the article.

Lucas
Lucas · Staff Editor
I prefer peaceful and quiet life during vacation,but sometimes I watch football match if my favorite club performs brilliantly in that season. And I love reading, painting and calligraphy, thus I send my friends festival handwriting cards every year.