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Create mismatch between disk size and actual NTFS size

I keep looking for 10kb files, but the disk size is 10gb. Trying to figure out how this is done, who has any ideas?

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You can create sparse files on NTFS as well as any real filesystem. :-)



Search (10GB - 10KB), write 10KB of data. There you have a so called 10GB file which is actually only 10KB. :-)

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You can create streams in NTFS files. It's like a separate file but with the same name. See here: Alternative data streams



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I'm not sure in your case (or it might be a mistake in your question), but when you create a sparse NTFS file it will show different sizes for those fields.

When I create a 10MB sparse file and fill it with 1MB of data, the data explorer will show:



Size: 10MB

Size on disk: 1MB

But in your case, it's the other way around. (or error.)

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