Macbook csi: missing HD space!?

Question

i have a 120GB HDD macbook and its saying i only have 48.82GB left, this is un-usual because i DL'ed omniDiskSweeper and that says i have used 62.6GB, BUT the biggest folder is users, and this is only 35.7GB big!! so where has the other ??.?GB gone?!

10pts to the person who solves the problem

Answer 1

do you ever use  FileVault to clean up unused space on the hard drive?

I use it a couple of times a week.

Answer 2

It appears you are missing roughly 9GB.  (120GB - 62.6GB = 57.4GB.  57.4GB - 48.8GB = 8.6GB)

So where is the missing 9GB?!?

It never existed in the first place!  Hard drive manufacturers and computer manufacturers measure drive space based on "marketing" math that uses increments of 1000 instead of the actual 1024 increments that all operating systems recognize.

At 80GB the difference amounts to about 5.6GB, roughly a 7% difference.  So at 120GB the difference would be 8.4GB.  Voila!

Answer 3

The operating system and program files perhaps?