Hard drive full? No, it is not

Have you emptied the Trash since deleting the files you do not need?

Spotlight is used to generate that data for the info panel. You can try rebuilding the Spotlight database by adding the boot disk to the privacy section of the Spotlight Preferences (in System Preferences). Accept the warning & then remove the disk from privacy to cause Spotlight to rebuild the index.

When it has finished check the size again (it will take many hours to rebuild).

What does Finder say for the disk space? Select the boot disk & get info on it to see what is used & free.

If you only have about 50GB free, I'd suggest you make some more space. These spinning hard disks perform slower the more data you have stored on them.

http://macperformanceguide.com/Storage-WhyYouNeedMoreThanYouNeed.html

Your 4GB of RAM is likely to be not enough if you do a lot of different tasks, when it runs out the OS has to write RAM to the disk, which may be under performing because you have too much data on it. It will all combine to give a slower Mac.

Note: 'Other' is not one file, it simply covers all the other data like basic data, apps, caches, iOS backups… everything else basically.

OS X: What is "other" space in About This Mac? - Apple Support

nico_bada wrote:

4GB of RAM I think is the maximum that I can put in this MacBook

8GB is the maximum for your Mac, possibly even 16GB. (Your description fits a couple of models) but at least 8.

nico_bada wrote:

Drew Reece wrote:

Spotlight is used to generate that data for the info panel. You can try rebuilding the Spotlight database by adding the boot disk to the privacy section of the Spotlight Preferences (in System Preferences). Accept the warning & then remove the disk from privacy to cause Spotlight to rebuild the index.

When it has finished check the size again (it will take many hours to rebuild).

I don't find my boot disk, anything else? Anyway in Spotlight options all the category are not selected.

Well if you want to rebuild the index you have to add it to the privacy list & then remove it. The disk we are talking about here is your 'boot disk' it's called Mac HDD in the first image.

http://osxdaily.com/2012/01/17/rebuild-spotlight-index/

Whatever options you have selected in the Spotlight categories are not relevant, they are just filters that change what is shown in search results. Spotlight will still need to gather the other data for it's overview.

Your disk appears to be showing the similar free space (55.2GB in Finder vs 56.1GB in Spotlight). I would not worry about the the very minor difference (it is 900MB out of about 450GB). You should still consider that you have too much data on the disk, if you want the best performance from it. My own disks also have small discrepancies between Finder & the 'about this Mac pane' - I don't worry about them.

If you still can't understand what is using the disk space you will need to use Omni Disk Sweeper or another app (WhatSize or Grand Perspective) to view where the space is used - Spotlight & this overview panel are not very helpful at all. Also bear in mind that other users are not priorly calculated in Omni Disk Sweeper unless you have full access to the system…

http://www.macobserver.com/tmo/article/how_to_recover_missing_hard_drive_space/

Do not delete anything when running the app as root - it can ruin your day!

There are a few guides around that may give you some ideas for finding free space too.

http://www.thexlab.com/faqs/freeingspace.html

http://www.pondini.org/OSX/DiskSpace.html

Whatever you decide to do make sure your data is backed up first!. Deleting the wrong thing can leave your Mac unbootable or ruin data for apps like iPhoto or iTunes etc.

For the RAM, use Mactracker.ca (or everymac.com & some manual searching) to find your exact model & read the RAM figures under the 'memory & graphics' tab. Apple often say a model supports less than it is capable of supporting because larger memory modules were released after the model shipped.

Looks similar to…

disk space (mysteriously) disappearing

It seems that thread is unresolved. I don't know what process is creating this so they will probably be recreated if you delete them (you will have to keep an eye on that location or hope someone here can explain them).

A word of warning… /System belongs to Apple, deleting anything inside there is very dangerous & can make a Mac unbootable. Be sure you have a full OS backup before you begin. If that backup is bootable it makes life easier to restore if anything goes wrong.

The /System/Library/Caches are caches used across the entire OS. If removed they could be recreated, however you will need to do so when the OS is not using these files.

Only remove the files in the /System/Library/Caches/com.apple.coresymbolicationd directory would be my advice, do not do so in Omni Disk Sweeper - the OS is probably using those files.

To remove the files you could use single user mode to delete that directory - do you know how that is done? It is a command line interface & typo's can break your Mac.

Please do not jump into this unless you are sure you know what you are doing, ask for help here but give us an idea of what you understand. If it is too difficult you can probably get help at an Apple store, especially now you know where the large files are hiding.

I suspect you need to look for log messages from 'com.apple.coresymbolicationd' to try to work out what is failing, it is not clear to me what log will contain errors, do you know how to use /Applications/Utilities/Console of find log messages?

nico_bada wrote:

Hello I'm here, sorry for belated reply but I was busy.

I didn't remove anything yet because honestly I don't know how to do all the things that you posted me

I think to go in a apple store for assistance

They should be able to help you delete them safely. Good luck with it.

That is not normal. You will need to see if it grows again and then look at steps to stop it happening.