How to Delete Duplicate Files in Windows 10 [3 Ways]

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, a full-featured duplicate file remover.

★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 Professional 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.

Step 1. Open this duplicate file remover after installing it. Click “Free up” and “Delete Large Files”.

Step 2. Then, select the target drive and click “Start Scan”.

Step 3. After that, all files will be listed. Tick the duplicate files from the result.

Step 4. Click “Delete” to remove all duplicate files.

There are other advanced features you can try:
✍ App Mover: Move installed programs/folders from one drive to another without losing data.
✍ Migrate OS to SSD: Migrate Windows from HDD to SSD without reinstalling.
✍ Allocate Free Space: Allocate free space from one drive to another.
✍ Convert MBR to GPT: Convert MBR to GPT without data loss, and vice versa.
✍ Recover data: Recover lost data easily and quickly.
...

Don'hesitate to download AOMEI Partition Assistant and improve the computer performance.

Next, we will continue to introduce how to delete duplicate files in Windows 10 without software.

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.

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.