Duplicate Cleaner FAQ

I can't delete a file because it is protected/access denied
 Solution #1 If you are trying to delete a system file, or a file from a protected system folder, then Duplicate Cleaner may block this. To allow th...
Sat, 9 Jul, 2016 at 9:38 AM
Unable to mark a file (file locked / protected folder)
If you are unable to mark a file for deletion, either by clicking on the checkbox or using the Selection Assistant, this means the file is in a Protecte...
Wed, 30 Aug, 2017 at 1:23 PM
System.InvalidOperationException on starting (Font issue)
If you get a pop-up message with a System.InvalidOperationException on starting Duplicate Cleaner (or TextCrawler) you may have a damaged font file o...
Sat, 9 Jul, 2016 at 9:38 AM
What is the difference between the content comparison / hashing types?
 From a user perspective, there is very little difference between the hashing algorithms - some people like the choice though. Byte-to-byte ...
Sat, 9 Jul, 2016 at 9:38 AM
What are the command line parameters for Duplicate Cleaner Pro?
  Duplicate Cleaner Pro has the ability to be called from the Windows command line shell, or a batch (.BAT) file.   The following command line...
Sat, 9 Jul, 2016 at 9:56 AM
Can I view the manual online?
You can view the Duplicate Cleaner 4 manual online here: Duplicate Cleaner 4 Manual. You can view the Duplicate Cleaner 3 manual online here: Dup...
Mon, 13 Jun, 2016 at 11:02 AM
Does Duplicate Cleaner 4 work on Windows XP?
Duplicate Cleaner 4 won't run on Windows XP.  Version 4 requires the Microsoft .NET Framework 4.5 which isn't supported on Windows XP. However, ...
Fri, 9 Dec, 2016 at 10:35 AM
What does the red / orange highlight in the file size column indicate?
The highlighting on the size column simply indicates where you have a large file. 100MB to 1GB =  Tomato (Orange) highlight 1GB or greater = Red hi...
Tue, 10 Jan, 2017 at 10:07 AM
Duplicate Cleaner won't scan hidden folders
The program won't find or scan into hidden or system folders by default. To change this, you need to uncheck the  "Options->Protect Importan...
Mon, 12 Mar, 2018 at 12:04 PM
Help, where have my files gone?
Have you been using Duplicate Cleaner and you can't find files you think should be there, or you fear you have deleted something you shouldn't have?...
Tue, 16 Oct, 2018 at 4:28 PM