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1. #HOW TO EXTEND MAC HARD DRIVE SPACE HOW TO#
2. #HOW TO EXTEND MAC HARD DRIVE SPACE INSTALL#
3. #HOW TO EXTEND MAC HARD DRIVE SPACE UPDATE#
4. #HOW TO EXTEND MAC HARD DRIVE SPACE FULL#
5. #HOW TO EXTEND MAC HARD DRIVE SPACE FREE#

We don’t know exactly what it contains, which means we can’t safely get rid of it completely.

#HOW TO EXTEND MAC HARD DRIVE SPACE HOW TO#

How to Delete 'Other' Storage on MacĪs you can see, the contents of Other storage are not easily accessible.

#HOW TO EXTEND MAC HARD DRIVE SPACE FULL#

In addition, it is strongly recommended that you make a full backup of your system before deleting anything so as to avoid a potential disaster. However, when deleting cache files, especially those in the system, you should be careful because you don't know what impact it will have on your macOS if you delete them by mistake.Īs a rule of thumb, if you don't know what the file is or what it does, leave it alone. dmg files and leftovers from uninstalled apps are safe to clear. If you don't see the Manage button above the storage bar, open Terminal and run the command: open -a "Storage Management.app" to open the storage management window. In the lower-left corner of the window, you will see a category named Other and the size of the space it occupies.

#HOW TO EXTEND MAC HARD DRIVE SPACE UPDATE#

System files and files that the system cannot recognize will be labeled as "Other." Here are some things that may be included in other storage.

Maybe it's just some strange bug in the OS that you somehow triggered on that one machine which I find hard to believe though.Īnother thing that just I just thought of: have you checked the /private/tmp and /var/tmp folders? I'm not quite sure whether the contents of these folders are deleted or just moved to the trash when rebooting though, so it might be a lost thought.Mac System Data Storage Huge? How to Clear It? What is "Other" in Mac Storage? Since you say you use the same applications on your other machines, it might help.

#HOW TO EXTEND MAC HARD DRIVE SPACE INSTALL#

If nothing else works, I guess you can only try reformatting your hard drive and do a clean install of the system (not a time machine restore, that would probably just get you the disk space eating thingy back). What I have experienced though, is that Flash actually does use up all of my disk space, but I was watching youtube movies in HD (although one at a time, so why?!?) - I think they (Adobes Flash team) are doing it on purpose to convince people that Apple's move not using Flash for the iPhone was the right choiceĪnyway, Activity Monitor didn't report me any big memory usage either, disk space just kept disappearing as I watched more movies.īy the way, have you tried to contact Apple's support about this? (And I'm an IT guy, too!) Any assistance would be most appreciated.Īlthough the space going back to normal after a reboot might sound like a memory leak, I find it hard to believe that a memory leak can use up 80GB of disk space.

Is there anything anyone could suggest to allow me to monitor what is writing to the disk, or see where the space is going, or anything else that might help? This is a very weird situation and I've never seen anything like it before in all my years of Mac ownership. I don't have any programs running aside from my normal startup items (background apps), and as far as I can tell, nothing has been added to my list of startup items (either in System Preferences or under /Library or ~/Library) since this problem started. This has been going on for a little over a week now and I've been sure I could resolve it several times, but up to now I must admit defeat. I certainly can't find anything out of the ordinary that's suddenly eating up 80 GB of my space.

#HOW TO EXTEND MAC HARD DRIVE SPACE FREE#

I've looked at the drive when I've had 80 GB free and I've looked at the drive when it's been at Zero KB, and I can't see a difference. This is the truly weird part: I can find nothing.

Now, I have waited for it to hit Zero KB and then run both OmniDiskSweeper and WhatSize to try and determine where all my space has gone. If I leave it alone for long enough (generally one full day), it will hit Zero KB and things will start breaking.Īll I have to do is restart the computer, and suddenly I have 80 GB free again and the cycle starts all over. Once I login to the computer, the amount of free space slowly starts decreasing. My iMac is having its hard drive space eaten up by something and I have no idea what it is.