Files not transferring - "Error code -36"

Discussion in 'OS X Yosemite (10.10)' started by alexpomnikow, May 28, 2015.

  1. alexpomnikow, May 28, 2015
    Last edited: May 28, 2015

    alexpomnikow macrumors newbie

    May 28, 2015
    Hey folks

    I keep getting this error message saying
    "finder can't complete the operation because some data in " ... " can't be read of written.
    (Error code -36).

    I've recently swapped out my optical drive for a new HD (WD Blue 1TB) and my old Sata drive for an SSD (Crucial MX200 500GB). I put the old drive in a case and have been trying to transfer my files over but every so often (and very inconsistently) this error message comes up. Sometimes if I transfer the file individually to the secondary slot it'll work fine, but some files just won't go no matter what.

    I've changed all the permissions to all read & Write on both file and destination drive.
    I'm running a late 2011 15" MBP, Yosemite.
  2. dianeoforegon macrumors 6502a


    Apr 26, 2011
    Error -36 is a hardware error. Error -36 is often just a read/write error e.g. when copying from a bad DVD. If you get this error when copying between hard drives you should start to worry.

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