1.    15 Aug 2017 #1
    Join Date : Mar 2017
    Posts : 42
    win10

    is there any software to comparing files???


    For example, I have a couple of hard drives that are storing tens of thousands of files. There might be some files that are identical. Is there any software that can check all files in the drive to see if there are any files that are identical ? The software should not check only their filename but also the content of the files. The same filename does not necessarily mean the identical file.
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  2.    15 Aug 2017 #2
    Join Date : Jul 2017
    London UK
    Posts : 22
    Windows 10 Home

    See here:

    FREE Great Programs for Windows 7 [2] - Page 70 - Windows 7 Help Forums

    Works on Windows 10 too. The interface might be confusing at first but it does what you are asking for.
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  3.    15 Aug 2017 #3
    Join Date : Oct 2013
    Covington, Louisiana
    Posts : 730
    Windows 10 1703 Pro 64

    CCleaner has one under tools. I have not used the Content filter yet.

    Click image for larger version. 

Name:	CC Duplicate Finder.JPG 
Views:	2 
Size:	72.8 KB 
ID:	149024

    Jim
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  4.    15 Aug 2017 #4
    Join Date : Nov 2015
    Posts : 133
    Windows XP, 7, 8.1, 10, Knoppix [Debian] linux

    Quote Originally Posted by Tsw88 View Post
    For example, I have a couple of hard drives that are storing tens of thousands of files. There might be some files that are identical. Is there any software that can check all files in the drive to see if there are any files that are identical ? The software should not check only their filename but also the content of the files. The same filename does not necessarily mean the identical file.
    Google "doublekiller"
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  5.    16 Aug 2017 #5
    Join Date : Dec 2015
    Posts : 5,893
    Windows10

    How about windows original command fc.exe


    How to Use FC (File Compare) from the Windows Command Prompt
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  6.    17 Aug 2017 #6
    Join Date : Nov 2015
    Posts : 133
    Windows XP, 7, 8.1, 10, Knoppix [Debian] linux

    Quote Originally Posted by cereberus View Post
    How about windows original command fc.exe
    How to Use FC (File Compare) from the Windows Command Prompt
    It works, but I'm not sure it would be suitable for the task that the OP is facing; i.e. comparing "tens of thousands of files".

    AFAIK it has significant limitations:
    • The exact folder locations of the files to be compared must be explicitly entered
    • It can only compare the contents of a maximum of two folders at a time.
    • The files to be compared must have the same exact name, otherwise misnamed duplicates can be missed.
    • There is no built-in function that automates (preferably by a GUI) a summary display of duplicate files and a means to deal with them (i.e. choose which duplicates to move, delete, etc).


    Doublekiller, which I referred to above, is a simple, elegant GUI program which addresses every one of these deficiencies.
    Last edited by mike s; 17 Aug 2017 at 07:37.
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