Harddrive reporting as wrong size

June 23, 2010 at 17:20:18
Specs: Microsoft Windows XP Professional, 3.391 GHz / 1014 MB
I have a 160 Gb Hdd, (ST3160828AS) [DELL 160GB SATA150 7200RPM HDD - Original DELL part], but in windows and in all of Dell.com's scans it comes up as 149Gb. I purchased this computer from a large corporations surplus outlet store, and the Hdd had been wiped (no suprise) I've played with disk manager, and even went to diskpart - list partition. all it shows is one partition of 148.92 Gb and no unused space. ....... what hapened to that lost 11 Gigs???? Bios even says that the utility partition is unavaliable. ... So that went by by too, but I can't find or use the space. Please HELP.
Oh, currently on FAT32 (untill I understand the missing space) and have upgraded to bios A11

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June 23, 2010 at 17:42:29
This is a very common situation.
The issue is that there are two established definitions for what GB means.
The definition used by most drive manufacturers s that 1GB=1,000,000,000 bytes.
Windows uses the other definition where 1GB=2^30=1,073,741,824 bytes.
Divide 160,000,000,000 by 1,073,741,824 and you get about 149GB.
That is the capacity of your drive.

Also see this article:

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June 23, 2010 at 18:25:18

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June 23, 2010 at 18:53:39
For a rough estimate, multiply the advertised capacity x 0.931.

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