Hard Disk Memory - where are you?

I have the MacBook Air a few months now. I've had the error message 'Start up Disk Full', so I cleared off old vids etc and got a few clean up tips from YouTube videos. That's ok for now.
I've used Disk Discovery to see what level of memory is taken up in files on the hard disk. From what I can gather 37Gb is taken up by everything - user and system files etc. My system resources say I have 12Gb free and the HD is 64Gb. I can't uncover where the other 15Gb is.
So, my question is two fold - How much of my 64Gb should be taken up by system files (I assumed about 10Gb) and where can I locate the remainder of my memory?
All hints & tips welcome. I want to fill up a 32Gb iPod from my iTunes.
Ta,
Phil.

If you go to the Apple Menu, select "About This Mac", and click "Storage", you'll get a sense of how much everything is taking up on your Mac.
The system is going to take up about 10-15GB of space.
Here are some hints to eek out some more storage.
Download and run Monolingual. It is free and will remove all the languages you are not going to use within the OS. For me, I only speak and use English, so I removed everything but English and saved about 1.5GB of storage space.
I purchased Clean My Mac 2 and recovered almost 5GB of storage by removing junk like log files, etc. that build up within OS X. It also has a nice feature which will show you all the files that haven't been used in a long time and/or take up a lot of space. There are ways to do this manually in Finder, but this program makes it a lot more straightforward.
After installing applications I look in the app folders for crap like sample files, readme files, legal files, etc. - all the crap that gets installed that you're never going to actually use or look at. That isn't a ton of space, but good for a few hundred MB. Every little bit counts in my book.
Always keep about 10% of your storage free. The OS constantly writes/deletes information and the less free space it has to work with the slower it will perform.
Hope this helps!

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Welcome to the Apple Discussions!
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I have a question related to post:
http://forum.java.sun.com/thread.jsp?forum=31&thread=347231
Was the dll ever completed and is it available?
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Hard disks memory is full

Hello all,
Now I work only 2 weeks with the SAP BW. Now it came to a mistake. I just encountered some errors while working with this database. So far there was an error while creating new tables because of an lack of hard disk space. For now it's impossible to extend the hard disk space. Therefore, I'd like to delete the data we don't really need anymore like old log data.
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Hi,
The first point will be PSA requests.
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hi
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it's memory filled up recently so i removed 3 gigs worth of memory. i then downloaded a pdf form only for all the free memory to disappear. so i cleaned out more memory about 1.4 gigs worth only for that to disappear as well. is this a virus or a consequence of running the computer with hardly any memory.
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Hi Zacster!
What size is the Hard Drive, and how much free space is available?
To find that info, click once on the Hard Drive icon to highlight it.
Press the Command + I keys to Get Info.
What is displayed for:
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Available: ?
Used: ?
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Authored by Dr Smoke:
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Mac OS X 10.3/10.4: System Maintenance, authored by Gulliver
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Quit all applications/programs.
Navigate to HD > Applications > Utilities.
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Enter your Admin password when prompted, then press Return.
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When completed, repeat this procedure, but change the command to:
sudo periodic weekly
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Repeat again, with command:
sudo periodic monthly
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When the tasks complete, and return to the prompt, you may quit Terminal.
Restart the Mac, and run Repair Permissions.
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Showing your export settings screen might help - http://forums.adobe.com/thread/592070?tstart=30
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Regarding hard disk memory

Can the memory of hard disk reduce? My hard disk capacity is 500 GB . It is showing 400 GB in windows and 20 GB in ubuntu . Is the remaining memory lost?
prudhvi

Hello prudhvi,
Based on the screenshot, the capacity is seemed right.
About the hard drive actually capacity, it is recommended to contact the manufacturer.
Thanks for your understanding.
Best regards,
Fangzhou CHEN
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

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Eventually i checked the Activity monitor, and found to my surprise that a whopping ~135 GB was being used for virtual memory purposes.
This is misleading.
Is virtual memory the culprit behind these problems?
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Hard Disk Memory - where are you?

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