Duplicate files when copying to a MAC OS flash drive?

Question

macOS

Hello, I've run into this problem.
I bought a removable hard drive and decided to free up space on the poppy, copied some of the files / folders from the Finder. Everything is fine, everything is super, but when I open a flash drive on Windows, I see duplicates of almost all files that weigh 4kb each.
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What is it and how to get rid of it?
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Photo files

Answer 1

These are not duplicates. These are service files. For spotlight inteksirovanie, if I'm not mistaken.
For removable media, this can be disabled.
I do not remember exactly how (these files do not soar), but Google easily finds options.