iMac HDD size

[Muzz112]

I currently have an iMac with a 320Gb HDD, but when i went to check the volume of the HDD it said that the disk size is 265GB with 180GB free.

I have 2 partitions on my mac, one on bootcamp and one on Fusion but between the 2 they add up to 90GB which doesn't explain the loss of 55GB

Any ideas?

 

[Hellhammer]

OS X takes it own space (about 25GB) and every HDD has been formated which also takes space. It's normal don't worry

 

[Tallest Skil]

Ugh...

Hard drive manufacturer: 1GB = 1,000 MB
Operating System: 1GB = 1,024MB.

OS X is about seven gigabytes, not 25.

 

[Hellhammer]

Ugh...

Hard drive manufacturer: 1GB = 1,000 MB
Operating System: 1GB = 1,024MB.

OS X is about seven gigabytes, not 25.

Hard drives isn't made with 2 potency technique anymore? RAM is still as you know (1GB = 1024MB, 4GB = 4096MB etc.)

I was just thinkin about MBA when I said that 25GB (because its 80GB HDD has only ~55GB after OS install). Now I realised that W7 takes 16GB so 25GB is way too much. Does OS X take only 7GB?

 

[Muzz112]

I went to the apple shop, and they seemed to think it was due to OS X, but 55 GB does seem like a lot for OS X.

They said the only way i can retrieve the lost space is to re-format the HD and start again.