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I was bored and decided to open up my hard drive in HxD (a free hex editor) and wanted to see what the REAL size of my disk is. So I did and scrolled to the bottom and discovered that the last sector is unused and unwritten to. Why would this be?

screenshot

(Also it says it isn't the last sector, but it is)

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How did you established it was unused? – David Schwartz Sep 8 '12 at 4:14
    
I've had this disk for 6 years and it's still empty. Also, it looks like this on my other drives – Cole Johnson Sep 8 '12 at 4:21
    
It's for the 6800 hcf – Snesticle Sep 8 '12 at 4:24
up vote 1 down vote accepted

The last sector would be unused if 1) it was not included in any partition, or 2) if it is inside a partition, but the partition does not carry a filesystem, or 3) if it is in a filesystem, it has not been allocated to any file, or 4)if it has been assigned to a file, the file does not have anything to put in there. You give absolutely no information to decide the state of the sector you show. There is no reason to think that sector is unused, the fact that it is all nulls indicates nothing.

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Files are 4k at the minimum on the disk, so could it be that? – Cole Johnson Sep 8 '12 at 4:29

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