lost 2gb


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I have a 20gb had drive format as a 19gb. I was looking at my free space and it showed 6gb have been used, but i went and got the properties of all of the files and folders (including the hidden and system) and found it was only using 4gb. So any buddy know where the other 2gb is? Is it a bug in my Maxtor drive, in XP, in my install? Anybudy have this problem before?

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Originally posted by Weasel

Can someone explain to me the difference between "size" and "size on disk"?

I've never understood that.

Size: Actual space that the file's data uses.

Size on disk: The actual space the file uses + wasted space from "slack" on the disk due to a file not using the whole cluster.

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Out of curiosity I right clicked on my c drive and picked properties. It said I was using 5.19 GB. Then I opened my c drive, selected all files (including hidden and system), right clicked and picked properties. It said there was 4.24 GB in files and folders.

Hmm.

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Mine was 2.46 GB used, highlighted all files and got 2.33 GB used... also make sure you uncheck "Hide Protected Operating System Files" for an accurate look. Also run chkdsk /F as it will fix some bad counts and free unused indexes, and clean up the drive as well.

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There are two different number systems which are used to express units of storage capacity; binary in which a kilobyte is equal to 1024 bytes, and decimal in which a kilobyte is equal to 1000 bytes. The storage industry standard is to display capacity in decimal, but some programs measure the capacity of a drive in binary.

Measurement Binary Decimal

Kilobyte (KB) 1,024 1,000

Megabyte (MB) 1,048,576 1,000,000

Gigabyte (GB) 1,073,741,824 1,000,000,000

Terabyte (TB) 1,099,511,627,776 1,000,000,000,000

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Originally posted by Erichiwaann

There are two different number systems which are used to express units of storage capacity; binary in which a kilobyte is equal to 1024 bytes, and decimal in which a kilobyte is equal to 1000 bytes. The storage industry standard is to display capacity in decimal, but some programs measure the capacity of a drive in binary.

Measurement Binary Decimal

Kilobyte (KB) 1,024 1,000

Megabyte (MB) 1,048,576 1,000,000

Gigabyte (GB) 1,073,741,824 1,000,000,000

Terabyte (TB) 1,099,511,627,776 1,000,000,000,000

This is true, and the binary capacity is the correct one.. but I find this irrelevant to this discussion really since Windows uses binary for sizes anyway... ;)

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So how do you know which one to use in certian situations Erichiwaann? For example I know that Coolmon uses the binary method so one must device by 1024 to get correct conversions betweek KB and MB

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