Cannot Copy File To Either Of Three USB Flash Drives


  1. caxtin
    Posts : 196
    Windows 10 x64 (Version 20H2) Updated
       New #1

    Cannot Copy File To Either Of Three USB Flash Drives


    Cannot Copy File To Either Of Three USB Flash Drives-filesize.jpg
    Why can't I copy the 5.7GB ISO file to either of these three USB Flash Drives?
    Please see attachment.

    Thanks.
      My Computer
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  3. Try3
    Posts : 16,949
    Windows 10 Home x64 Version 22H2 Build 19045.4170
       New #2

    Right-click on any of the column headers in File explorer [such as Name, Type, Total size, Free space] and show FileSystem. If the file system is FAT32 that would explain the problem.

    Denis
      My Computer
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  4. caxtin
    Posts : 196
    Windows 10 x64 (Version 20H2) Updated
    Thread Starter
       New #3

    Try3 said:
    Right-click on any of the column headers in File explorer [such as Name, Type, Total size, Free space] and show FileSystem. If the file system is FAT32 that would explain the problem.

    Denis
    Yep, that does it. All three file systems are FAT32. I backed up one of the flash drives, formatted it to NTFS, copied back the files and added more files so the Free Space will be even smaller. Then, I tried copying the 5.7GN file, and Voila, it's copying.

    The issue has been driving me in sane for a while now. The issue was just a simple spacial mathematical situation. Now I know why.
    Thanks you so much!
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  6. Bree
    Posts : 31,660
    10 Home x64 (22H2) (10 Pro on 2nd pc)
       New #4

    ExFAT would do too. Fat32 is limited to a 4GB max. file size. BTW, MiniTools Partition Wizard can convert the format of a partition without loosing any files. Still a good idea to make backups first, though.
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