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I have multiple backups stored on external, how to remove dupe files

Discussion in 'Windows - General discussion' started by Wyattspop, May 23, 2016.

  1. Wyattspop

    Wyattspop Regular member

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    I'm embarrassed to post this, but before I understood anything about backing up and restoring wondows properly, I just saved my entire "My Documents" file that stored all my valuable family photos/vids. Now, several years later, I see I've got like 4 backups from the same PC and I probably have say 25,000 pics saved 4 times over, and many are surely dupes (duplicate copies of the same photos. Which proggie do you guys trust to remove duplicate files with minimal risk of deleting non-dupe photos? Thanks I keep them on my 1 TB external hard drive.
     
  2. ddp

    ddp Moderator Staff Member

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    do you have 4 copies of "my documents" folders showing on the external hard drive?
     
  3. Wyattspop

    Wyattspop Regular member

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    Yep, I sure do! Basically every time I had a nasty virus I couldn't resolve, I backed up the Documents folder and did a restore. When I did these, I didn't just add the newest photos, I dragged the entire contents to the external HDD (who has time to filter through 25,000 family photos? (-;/ Thanks DDP
     
  4. ddp

    ddp Moderator Staff Member

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    then delete out the older folders & keep the newest one. when I copy & paste my "ships" folder onto my external, I delete the old folder 1st off the external before doing the paste.
     
  5. Wyattspop

    Wyattspop Regular member

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    I think I understand. At this point, I could probably just sort the pics by date and delete anything I saved after each "save". this could work out nicely, thank you. Beats sorting through 100,000 pics (25K per save)
     
  6. ddp

    ddp Moderator Staff Member

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    as the "my documents" folder on your computer has all & latest pictures plus documents then delete old "my documents" folder on the external hdd then copy & paste the "my documents" folder from the computer to the external. I do that once in a while for my documents but more often for "ship" folder & "video" folder as they get more added or subtracted to them plus getting organized with more sub-folders. this way what is on the external is exact same as on computer.
     
  7. good2go7

    good2go7 Member

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    Since you are dragging and dropping the 'My Documents" folder over from the PC to the external hard drive you should get a warning that "The folder already exists, do you want to overwrite it?" If you select "Yes" then the existing folder on the external hard drive will be over written. As the overwriting progresses you should get a warning that a particular file already exists and ask if you want to overwrite it. You can select 'yes' then select 'do this to all files or 'skip all duplicate files'. With this method you should only have one copy of 'all' files and a copy of the most recent files added to the existing "My Documents" folder. I hope this helps.

    good2go7
     
  8. ddp

    ddp Moderator Staff Member

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    if you delete the previous "my documents" folder 1st then won't have that problem.
     
  9. qazwiz

    qazwiz Member

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    flat out deleting folders is not a good idea unless you know for a fact that the new folder contains all of the others items....... if just one photo was deleted it will be gone forever

    using the skip duplicates is likewise unwise since the duplicate is identified only by name

    years ago i had a program that sorted by size then did a byte by byte compare of the contents (ignoring the file name) to identify dups. this is the most reliable since "Uncle Bob and aunt frieda" & "uncle bob and aunt frieda" are different (not to mention "aunt frieda and uncle bob")

    the program would span the entire disk or compare individual folders as desired

    unfortunately i have lost the program via disk crash and forget the name (or i would immediatly reinstall on current computer)

    hope this info helps you refrain from losing a precious memory
     
  10. ddp

    ddp Moderator Staff Member

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    i'll keep doing this way as I keep editing files & folders so that this way my backup is concurrent with my downstairs computer & the backup will be loaded onto my upstairs computer after I delete the folder that will be replaced by the backup. once that is done, both computers & the external hd will have the same files & folders i want saved.
     
  11. qazwiz

    qazwiz Member

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    as long as you don't accidentlly delete a file that will work... although there is another way to go that hasn't been mentioned yet..

    for less than $200 (sales might be $150) you can buy a 4T drive and save the files as many times as you want :p

    you probably spent that much for that 1T drive but by now another 1T can be bought around $60 and prices per byte keep dropping

    just sayin' :D
     
  12. tongs007

    tongs007 Active member

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    why would you want to buy a 4tb drive and just keep copying the same folder over and over again once you put something new in it, makes no sense, delete the older folders, keep the new
     
  13. ddp

    ddp Moderator Staff Member

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    agreed.
     
  14. qazwiz

    qazwiz Member

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    edited by ddp
     
    Last edited by a moderator: May 26, 2016
  15. ddp

    ddp Moderator Staff Member

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    qazwiz, watch that plus working with computers for 31yrs.
     

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