Lost hard drive capacity...


macrumors member
Original poster
Oct 5, 2006
New York
My girlfriend just got her MacBook Pro last Thursday and she's already down to 74GBs. We've checked every folder and have come to the conclusion that she has only used about 9-10GBs. That leaves 8GBs unaccounted for. Does anyone know where I can check where those unaccounted GBs went?


macrumors 6502
Dec 8, 2005
All hard drives once formatted have less than the advertised amount of storage space. It has to do with how early on in the computer and semiconductor industries adopted the term kilobyte to describe 2^10 (1024) bytes because 1024 is "close enough" to the metric prefix kilo, which is defined as 10^3 or 1000.


macrumors 6502a
Sep 13, 2004
Johannesburg, South Africa
You also might want to try and delete the logs, when I got my mac for some reason the log files bloated to over 5 gigs... ye 5 gigs worth of logs :eek:

There is a tool that graphically represents the entire filesystems content, big blocks represent big files, that way you can id strange bloated files, unfortunately I can remember the programs name.

mad jew

Moderator emeritus
Apr 3, 2004
Adelaide, Australia
NYmacAttack is right, but nevertheless you can use an app like OmniDiskSweeper to find where space is being used up quite easily. This is similar to the app that Lollypop mentions but doesn't display the results graphically. :)