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Frequently Asked Questions

Duplicate File Finder can find exact duplicate files and Duplicate Photo Finder looks for similarities in different images and easily find the duplicates as well as photos of the same pixels, rotated photos, flipped photos, resized photos, and edited images. It supports all popular image formats including RAW, JPG, PNG, TIFF, GIF and much more, which means it won't miss a single duplicate photo on your Windows PC

If you want to find and remove exact duplicates, then Duplicate File Finder™ is for you. With the help of this program, you will be able to manage duplicate documents, photos, songs, videos and more. There are lots of different options and scan methods that guarantee accurate results and make the search quick and easy.

However, if you are looking for a program to manage your photos, we suggest you try Duplicate Photo Finder. While Duplicate File Finder™ is great for finding exact duplicates of your photos, Duplicate Photo Finder can detect similar images of the same subject. This feature is ideal for those who have a large image library and want to get rid of poor quality shots quickly.

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Yes, Duplicate File Finder has a mode called Folder Comparison, This mode allows you to run very specific scans and find duplicates in specified folders only.

When you use the Folder Comparison Mode, Duplicate Finder asks you to select a Master Folder - a folder the program will use to compare other folders with. After you select the Master Folder, add some Target Folders. When done, perform a scan the usual way. Note that only the specified Target Folders will be scanned.

Duplicate File Finder treats the latest file in a group of duplicates as the original file and in Folder Comparison mode, all the files in the Master Folder are marked as the originals and the files in target folders are marked as the duplicates.
  • We always recommend backing up your files before running any cleanup activity!
  • As a general rule, you should only delete a file if you know what it is, and you are sure you don't need it. If you think you might need it then keep it!
  • It is always a bad idea to delete files from your Windows and Program Files folders unless you know what you are doing.
  • Do not rely on the Windows Recycle Bin as a safety mechanism for large-scale duplicate deletions. DO NOT attempt to clean out files from \Windows with the idea that "If something breaks I can just restore from Recycle Bin." The Recycle Bin is not limitless! Files you put there today may be gone forever two weeks from now.

It's amazing how many extra copies of files can be found on the average computer. A real mess actually! The reasons are many; often you make a backup copy, just in case, before making serious changes, but forget to delete it afterward. Sometimes the same file is downloaded or installed more than once, or extra copies created systematically, e.g. when sorting digital photographs by copying and renaming of files. And, sometimes files are accidentally copied to other locations, and remain there for a long time, i.e. until you find them with Duplicate File Finder!

On the average workstation, there are thousands or even tens of thousands of files. Understandably, it is quite a chore to keep them all organized. With Duplicate File Finder you can find unneeded extra copies of files, that can be safely removed. This way you can reclaim the disk space they occupy and use it for more important data.

There may be many reasons for that. Try doing the following:

  • Remove all filters that may prevent some files to be checked and try again.
  • By default Duplicate File Finder will not scan hidden and system files, to include them goto Settings > Scan Hidden Files
  • Your photos may look the same, but they may have different metadata.
  • You may have the same song saved as MP3 and as WAV. It's the same song to you, but to the software, it's two completely different files.

Duplicate files can begin appearing in your system for a number of reasons, and can have a number of unfavorable results aside from wasting your drive space. Various applications may install the same driver files, DLL's, ocx's (activeX controls), etc. in numerous different locations on your system, or you may copy or download the same files into different folders on your system without knowing it. Sometimes the only result of this is the waste of hard drive space. With Duplicate Finder, you can easily find and remove duplicate files.

Registration FAQ

There are two methods to activate the software... First is online, which is the most recommended method, and the second is offline where the Internet connection is not available.

For online activation, please follow below steps.

  1. Run Duplicate File Finder
  2. Click On "Help > Activate Pro Edition" menu.
  3. Paste the Reference Id, and click on "Activate Now" button.

Please follow below steps.

  1. Run Duplicate File Finder
  2. Click On "Help > Activate Pro Edition" menu.
  3. Choose "Request Activation File By Email" option, and click on "Request Now" button.
  4. Send us the generated text file.

We will send you the Activation File as soon as possible.

When you purchase a license, the license unlocks the program forever, so that you can use it for as long as you want. As for the expiry date, it's set to show you the period during which you will be able to download free updates. Once the license expires, you can continue using your version of the program, but you will need to extend your license to continue getting updates and have access to email support.

If you ever need to reinstall Duplicate File Finder or move it to a different computer, Please send us your request and let us know you want to transfer your license and we will reset our server.

Note: This feature is limited to 3 times

if you still have a product question or support related issue, please open a new support ticket here. All support tickets are answered by email within 24 hours, however most are answered much sooner.