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Delete Duplicate Files With Free Duplicate Finder

Fast Duplicate File Finder - Frequently Asked Question

How to exclude a folder from automark?

In the folders list tick the checkbox below the 'Disable Automark For This Folder' column for the corresponding folder.

How to exclude certain file types from automark?

You can exclude files by extension or a phrase in the file name by using the option Advanced->Do not auto mark files with:

Can I move the duplicate files to a separate folder preserving the directory structure?

Use the option 'Move Checked Files' by selecting first a target folder. Fast Duplicate File Finder will recreate the folder structure of the duplicate files in the target folder and move your duplicates there.

Which duplicate file finder to choose?

Please read this small article on the topic "Which duplicate file finder to choose?"

Fast Duplicate File Finder does not find some of my duplicates. Why?

Fast Duplicate File Finder has an option to protect your system files and folders which is enabled by default. Either move your files outside the protected folders or disable the option. Please note that the data on your desktop is also considered as protected in order not to delete duplicate icons and applications that may reside on the desktops of the other user accounts on your machine.

Protect System Files And Folders

The other possible reason for the application not to identify certain files is that you may have set filters. Make sure that the filtering button is not pressed (down) - the button with the funnel icon on the toolbar. If it is pressed just click it once - this will raise the button denoting that the filtering is no longer active. Clicking it again will bring up the filter settings dialog.

How to restore deleted files?

If you have moved the files to a folder just go to the root of that folder and copy the files and/or directories to the root of the corresponding drive that they belong to.

If you have deleted the files to the Recycle Bin explore its content, select all the files and/or folders inside and by right-clicking the selection choose the "Restore" pop-up menu item.

If you have permanently deleted the files there is not much to be done. You still have chances to restore some data by using an undelete/un-erase application though the chances are really low. You can Goggle to find such application on the web. Use your computer as less as possible until your try the undelete applications as the deleted data may be overwritten and permanently damaged. The space that the deleted data was occupying is now marked as free and the next write operation may use it.

Why in the status bar is displayed: Processing...(114/176); (2261 files total)?

FDFF performs a pre-scan analysis in order to quickly weed out the files that are not duplicates. The information above denotes that FDFF has checked 114 out of the total 176 files that it needs to check deeper. The total 2261 files are included in the analysis.

Some of the files can not be deleted/moved. What can I do?

Some files are listed and the following message appears: "Some files could not be deleted or moved and will remain checked in the list. Make sure they are not in use or located on a read-only media and retry."

As pointed in the message FDFF can not delete the files because, they are either in use and locked by another application or they are located on a read-only media like CD-ROM. There is nothing that you can do in the second case as you can not delete files from a CD-ROM. In the first case you can save the project file and restart your computer. Before starting any other processes (that may open and lock your files), start FDFF, load the project and try to perform the delete operation again. If you still have files that are in use these may be ones used by your operating system (we do not recommend deleting such files) or they may be in use by applications that are in your startup list and have been loaded during boot time. You can locate and disable such applications and retry.

The application freezes at %%, what is wrong?

Generally the duplicate file finder should not crash or freeze, but due to the huge amount of data that the application processes it is possible to find damaged files in your system that cause problems. What you can do?

  1. Make sure that your drive is not broken and does not have physical errors. You can try running the ScanDisk application from Windows. Once you have scanned your drives for errors you can try to run the scan again.
  2. If the application freezes at %% you can enable logging from the options and run a scan. A log file will be generated in "My Documents" folder named FastDupFinder_Log.txt. Check if the file contains any information regarding the issue or send it to us for analysis.

Copy/move file operation error code definitions.

Can not move (code: XXX): [filename]

Please refer to this list: File move/delete operation error codes

My files have the same sizes and names but are not identified as duplicates. Why?

The fact that two files have the same name and sizes does not make them duplicates. Fast Duplicate File Finder analyzes the content of your files so even if the two files have a single byte difference then they are not 100% duplicates and will not be listed as such.

If you still doubt that the files are different you can use a HEX DIFF tool to compare them and see for yourself that they are not exact duplicates - we guarantee that FDFF works perfectly and identifies ALL duplicate files.

If you want to find files with duplicate names then use the "Similar File Names" scan method and set the similarity to 100%.

If you want to find similar files use the "Similar Files" mode and set the similarity percentage to the desired level.

Do you provide CD delivery?

We no longer provide our tools on CD. There are many reasons for that and here are just few of those:

  1. It pollutes the environment.
  2. Most users do not want to pay the extra charge for physical product and delivery.
  3. It takes time to deliver while you can instantly download an electronic purchase.
  4. You can not update to the newer versions using a CD.
  5. CDs are easily damaged during transportation or storage.
  6. Many new computers do not have CD drives at all.

... and many more.

The scan process finishes quickly with no duplicates?

There are several possible reasons for that:
  1. There are no duplicates at the scanned location.
  2. You are trying to scan system folders - disable the option "Protect system files and folders" in settings and try again.
  3. You have set filter and the scan location does not match it. Disable the filter - make sure that the filter button on the toolbar is not pushed down which denotes that the filter is active or alter the filter's settings.

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