• Error 0x800703EE when copying to encrypted OneDrive folder

I consistently receive an error when copying large (500MB or larger) files to encrypted Boxcryptor folders (file nema encryption also enabled) within a personal OneDrive. System details: Win 10 Enterprise, x64.

An unexpected error is keeping you from copying the file... Error 0x800703EE : The volume for a file has been externally altered so that the opened file is no longer valid.

If I select "Try again," the files are copied. The copies are corrupt, however (different hashes). Windows then prompts that there are files with the same name. Choosing "Replace the files in the destination" results in correct copies.

There was a thread from 6 years ago with the same issue. The problem was fixed then. ANy ideas why it reoccurs now? This occurs with every large file copied to an encrypted folder.

    6 days later

    Hello EthanH,

    please contact us at support(at)boxcryptor.com, providing a Debug Log (see below) and referring to your post here.

    https://www.boxcryptor.com/en/help/faq-and-troubleshooting/windows/#how-to-create-a-debug-log

    Thanks in advance!

    Best regards,
    Yasmin

      2 months later

      Same issue here, very annoying.

      Also Win 10 x64, but name encryption disabled, and error occurs unrelated to file size, once every ~1000-2000 files. Target is Onedrive.

        Hello,

        We released the new Boxcryptor for Windows version 2.34.995 yesterday which contains improvements regarding this issue. It would be great if you could try if it solves your problems. You can download it here:
        https://www.boxcryptor.com/l/download-windows

        Best regards,
        Robert

          9 days later

          Hi Robert,

          I face the same issue. I use 2.34.995 and it does not help.
          Any advice what I could do to eliminate the issue? Any suggested configuration changes? I'm a software dev so can check some tech things if helpful.

          Thanks
          Slawek

            Hello Slawek,

            Can you please create a debug log, send it to support@boxcryptor.com and reference me and this thread? Here's a guide how to create a debug log:
            https://www.boxcryptor.com/en/help/faq-and-troubleshooting/windows/#how-to-create-a-debug-log

            Best regards,
            Robert

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