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Question: How does Windows 8.1 64bit copy files?

  1. #1

    Question: How does Windows 8.1 64bit copy files?


    Sorry in advance if I do not have the correct diction of the forum...

    How does windows copy files - does it copy one by one or does it copy them in a kind of torrent like way, in chunks. The reason why I am asking is a large transfer was interrupted by a BSOD the other day and I have ended up with duplicate files however I do not know if the files that were copied and interrupted are now corrupt.

    I am hesitant to delete the original source and will likely re-do the exercise but I wondered how Windows copes with an interrupt during file copy.

    Does it maintain the integrity of the file, so if it is interrupted on say file number 7/10 then it will verify and keep files 1-6 but delete the fragment / corrupted file 7?

    Would love to know.

    Thanks in advance

      My System SpecsSystem Spec

  2. #2



    BSOD Kernel Dump Analyst
    Posts : 2,274
    Windows 10 Pro


    HI TheHorsetoWater,

    When a copy action is interrupted, the original file is not touched.
    The file that is incomplete can be deleted safely and you can try to copy the files again without any corruption.

    Windows does copy the files 1 by 1, if the first is done Windows goes on with the second etc.
      My System SpecsSystem Spec

  3. #3


    use teracopy free.. and never care again about copying files going wrong...
      My System SpecsSystem Spec

  4. #4



    BSOD Kernel Dump Analyst
    Posts : 2,274
    Windows 10 Pro


    Quote Originally Posted by brooksndun View Post
    use teracopy free.. and never care again about copying files going wrong...
    Actually it'll always go wrong with BSOD's, no matter what software.
      My System SpecsSystem Spec

  5. #5


    Then you got more serious problems like faulty hard drive or corrupt window files / drivers ???
      My System SpecsSystem Spec

  6. #6



    BSOD Kernel Dump Analyst
    Posts : 2,274
    Windows 10 Pro


    Depends on if a BSOD returns.
    A one-time BSOD is handled by Windows itself.
      My System SpecsSystem Spec

  7. #7


    Thank you all for your thoughts.
    I tracked the occassional BSODs to a faulty USB Hub (a cheapy amazonian-sold Tachnysis Technysis one)
    Since then no BSOD,
    I guess I was generally interested if Windows writes a cache to volatile RAM to buffer the copy, or whether it uses checksum to return a verified copy. I could understand then if a BSOD would interfere with any write/read process.
    Thanks for the thoughts.
      My System SpecsSystem Spec

Question: How does Windows 8.1 64bit copy files?
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