Windows 10: 2TB USB Drive appears to copy files but does not

  1.    22 Jul 2017 #1

    2TB USB Drive appears to copy files but does not


    I have a 2TB USB drive ... I can copy files but at some point it appears that files are copied but only the folder exists once I remove the drive from the computer and go to read it later. I had this same issue with 512G micro SD cards although those gave a generic Windows error message.
    Does anyone know what I need to do to be able to write to the entire drive?
      My ComputerSystem Spec

  2.    22 Jul 2017 #2

    Are you properly ejecting the drive before removing it?
      My ComputerSystem Spec

  3.    22 Jul 2017 #3

    Yes, it works fine for a while. I have about 58GB that copied fine before this problem started occurring. Just taking it out versus ejecting it had the same results. It will create the folder but it does not copy the contents. If the folder has sub-folders they are created without the contents.
      My ComputerSystem Spec

  4.    22 Jul 2017 #4

    I would copy a few Gigabytes at a time.

    What's the company that made the 2TB USB drive? Is it a well known company, or was it one you bought from eBay for cheap for like $20 or $30?
      My ComputerSystem Spec

  5.    22 Jul 2017 #5

    If you have a different usb port to test with
    or
    you have another computer to test the usb drive on, you might find more about what is happening with what device.
      My ComputerSystem Spec

  6.    22 Jul 2017 #6

    I have tried on another computer with the same results. I got the USB drive on Amazon but it is generic. I think the issue has to do with the size and format. Wondering if anyone knows a tool for formatting a 2 TB drive, the windows format tool only provides for 0.00032768 TB.
      My ComputerSystem Spec

  7.    22 Jul 2017 #7

    Hmmmhhh.. Since you get the same issue on a different computer, it might be the stick itself. Formatting sounds like a good idea, so try to reformat it (Right click on it in File Explorer > Format). Try different settings for the formats, and see how it works. But you are likely to get the same results.

    I searched on Amazon for a generic 2 TB USB drive, and found this: Amazon.com: 2TB USB Flash Drive USB 2.0 Flash Memory Stick Fold Storage Thumb Stick Pen Black: Computers Accessories

    It's for $19.99 (excluding shipping) Yet look at the amount of 1 Stars it got... =\

    It's best to get a brand name (made in the USA) USB stick.
      My ComputerSystem Spec


  8. Posts : 3,922
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint
       22 Jul 2017 #8

    0.00032768 TB
    Looks like the formatting is trying to do FAT32 and that has a limit of 32GB with Windows, have to use a third-party software. Or format it as NTFS or exFAT, only choices in Windows Disk Management for large drives. It is necessary to use NTFS or exFAT for single file size of 4GB plus 1 Byte, can't be done with FAT32 due to its 4GB limit.
      My ComputerSystem Spec


  9. Posts : 196
    Windows 7 Ultimate 32bit
       23 Jul 2017 #9

    Hi petsrgolden,

    I would recommend this : 4 Tools to Test and Detect Fake or Counterfeit USB Flash Drives https://www.raymond.cc/blog/test-and...-with-h2testw/ The second one "FakeFlashTest is quite new so includes optimizations and methods better suited for today’s flash media."
    ( From the time I read your first post I was assuming that your "2TB USB drive " was an external HDD and was wondering what is this and how can it happen and gave up on it.. It never struck to my barren brain that you are referring to a flash drive. OMG, what an idiot I am !!!!!!! )
      My ComputerSystem Spec


 

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