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Why does my freshly-formatted disk have 450 MB of data on it?

Fresh7 days ago
Mar 15, 20262889 views
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Problem

The answer is probably obvious, but I'm sure enquiring minds want to know: if I erase a disk and reformat it, what's already taking up almost half a gigabyte of space? In this case, it's formatted HFS+ journaled on Mac OS X.

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Fix for: Why does my freshly-formatted disk have 450 MB of data on it?

Low Risk

You don't say what make and model disk, how you arrived at it's expected capacity or how you measured actual available capacity - so it could be some or all (or none) of the following: Disk vendors state sizes in powers of 1000, Operating systems re…

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