How to Delete Duplicate Files in Windows 10 [3 Ways]
When there are too many duplicate files on the disk, you can delete them to free up space. This tutorial will show you how to delete duplicate files in Windows 10 and 11.
By Roxanne / Updated on July 11, 2025
Key Takeaways:
- With Duplicate File Finder, you can scan your entire system for duplicate files and delete Windows 10 duplicate large files to free up space.
- In this article, we will explain how to find and remove duplicate files on Windows 10 with cmd and a third-party tool - AOMEI Partition Assistant.
Duplicate files are two or more identical files, they are usually copies generated when users copy a file from one path to another or save the file twice.
In fact, duplicate files are similar to temp files. They don't hurt your computer, but too many duplicate files will take up disk space and make your computer run slower. Therefore, it is necessary to delete duplicate files to free up space. Next, we will show you how to delete duplicate files in Windows 10 and 11.
Does Windows 10 have a duplicate file finder?
"I find that I have a lot of duplicate files on my computer, they tend to be in the tens of MB or larger and take up a lot of disk space. I want to delete them to free up space, is there any good way?" - from Microsoft Community
To remove duplicate files, it's important to find them first. Does Windows 10 have a duplicate file finder?Windows 10 itself does not include a duplicate file search utility, it only provides some manual functions to find them. So to successfully remove duplicate files on pc, you need to do it manually or with the help of other software - AOMEI Partition Assistant for Cleanup, a full-featured duplicate file remover.
AOMEI Partition Assistant for CleanupFree Up Disk Space To Keep Your PC Running Smoothly and Efficiently
- ★Why Choose AOMEI Partition Assistant to Find and Remove Duplicate Files:
- It scans all file types and quickly identifies duplicate files.
- With strong compatibility, it comprehensively finds duplicate files on internal and external hard disks, SD cards, USB.
- Examined by intelligent algorithms, it can speed up the whole process of detecting duplicate files, including detecting similar graphics.
- After detecting duplicate files it can safely and accurately delete duplicate items, thus freeing up disk space.
How to delete duplicate files in Windows 10 with duplicate file remover
AOMEI Partition Assistant for Cleanup is effective and efficient in removing all duplicate files from your computer. It speeds up the computer by finding and removing duplicate files. This is a powerful third-party software compatible with Windows 11, 10, 8, and 7.
Its "Delete Large Files" feature can scan files larger than 16MB on the target drive. After the scan is complete, all files will be listed, including duplicates. You can locate duplicate files in the scan results and tick it. Then, just hit "Delete" to delete them directly.
Please download the demo to see how to delete all duplicate files in Windows 10.
AOMEI Partition Assistant for CleanupFree Up Disk Space To Keep Your PC Running Smoothly and Efficiently
Step 1. Install and launch AOMEI Partition Assistant for Cleanup. Click the "Delete Large Files" tab.
Step 2. You can either click "Scan System Drive" 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.)
Step 3. After clicking "Custom Scan", all local and external drives on your PC and the common Desktop, Documents, and Downloads paths will be displayed. You can manually select paths to be scanned. Once necessary paths are added, you can click the "Scan Now" button to start the scan process.
The scan process might take time. After the scan is complete, all large files found will be listed.
You can also check the large files and click the button behind to locate them.
Step 4. Tick the files you want to delete, and then click the "Clean Now" button to start the deletion.
Step 5. 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.
How to delete duplicate files in Windows 10 using CMD
How to delete duplicate files in Windows 10 using cmd? Del command allows you to delete all duplicate files in the current directory and all its subdirectories, but you need to find the path of the duplicate files first.
Follow the steps and remove duplicate files in Windows 10 for free:
Step 1. Press “Windows + R”, type in “CMD” and click “OK”.
Step 2. Type "dir /s /b *.name" in CMD, where ".name" is the extension of the duplicate file type. For example, to remove duplicate pictures, enter "dir /s /b *.jpg". Then, hit Enter to scan disk.
Step 3. After scanning, the results of duplicate files will be displayed in the list.
Step 4. Find the directory or folder of the duplicate file in File Explorer, right-click and select "Copy as path".
Step 5. To delete duplicate files, type: del /s /f *.duplicate. It will delete all duplicate files in the current directory and all its subdirectories.
The commands for this method are more complex, so please choose carefully.
How to Delete Duplicate Files in Windows 10 Without Software
File Explorer is the standard built-in tool for removing duplicate files on Windows 10. With the help of this tool, you don't need to download any software like CCleaner.
Follow the steps and learn how to delete duplicate files in Windows for free:
1. Click on the Start button and type in Indexing Options.
2. Click Modify and Show All Locations.
3. Check all the boxes and click OK.
4. Launch File Explorer with the Windows key + E.
5. Go to This Computer > Local Disk (C:) > Users to access your Windows user profile.
6. Sort the files by making a change:
- Click on the View menu and then click on the Preview Pane.
- Navigate to the Layout section and select Details.
- In the Current View section, click Group
- Select Name and check Ascending.
7. Check for duplicate files by typing the extension of the file you want to delete in the Search tab of the File Explorer window.
8. Note the file name, modification date, and size. If you find a duplicate file, click on it and click the Delete button.
In addition, you can use the Control Panel to find duplicate files in a folder without software:
1. Open the folder where you think the duplicate file exists.
2. Sort them by name, type, or date.
3. Find the duplicate file and delete it.
These methods are a more complicated process, if you think it is troublesome, please just choose AOMEI Partition Assistant and take a smart way to find duplicate files.
AOMEI Partition Assistant for CleanupFree Up Disk Space To Keep Your PC Running Smoothly and Efficiently
Sum up
This is the whole process of how to delete duplicate files in Windows 10, 8, and 7, as well as Windows 11. There are two methods for you to choose from here. If you are good at computer, then deleting duplicate files in Windows 11 using CMD may suit you. But if you are just a normal user, there is no doubt AOMEI Partition Assistant Pro is the right answer.
