How to Fix Disk Full Error Mac Problem Manually and Automatically


Published On: , by MacSoftAdmin

There is a day that happens in the life of every Mac user when the message “Your startup disk is almost full” appears. But how can you deal the “mac disk full” error? You can make it manually or get help from the cleaning applications like MacFly Pro.

Let’s start from the beginning: what exactly is a startup disk? Well, this is a disk inside your operating system which contains all the files of your system, therefore, it is the most necessary disk of all the others. As a result, when the disk full error on mac is seen, it means that there is a huge load of your primary disk, and this is pretty bad news.

So, what does it mean when your Mac starts to show “startup disk full” error?

When the Mac startup disk achieves absolute performance, this is not good news for 2 reasons:

  1. You will use the whole storage space of a Mac soon.
  2. The disc will work slowly.

Most people do not know, actually, that their Mac is practically converting a free space on its own startup disk into virtual memory, which you use for daily operations. In the standard, 10% of the disk should be free in order to make the Mac operating system work appropriately. In consequence, if you do not have enough free space, you are faced with some problems.

How to check the disk space on a Mac?

In order to get to the root of the difficulty and find the solution, you have to identify, in fact, what takes up all the space on your startup disk. In order to get a complete idea of how your space is being applied, perform the appropriate actions:

  • Click the Apple icon
  • Choose About This Mac
  • Click “Storage” (or “More Information” – “Storage” on old computers)
Disk Full Message

You can see how much space left and what is actually in it. In case you have taken up free disk space, it is time to remove some files or add a fresh hard disk.

Fortunately, your drive will be full of movies, photos, and audio. Why fortunately? Because these files are simply sent or transferred to another space. Any external storage device or iCloud store will make a trick, and your Mac will thank you for actually getting the free space.

However, there is one more scenario in which other unnecessary apps occupy a free space with files that you cannot or do not want to delete. This situation is somewhat more difficult, but do not worry. These recommendations will give your Mac an auxiliary place. We grouped them into the category: Top startup disk cleaning tips.

Finally, let’s start working with your Mac right now.

Top Startup Disk Cleaning Tips

Believe it or not, first of your Mac’s professions is to make rubbish. But do not incriminate it, it simply does its work. The Mac system, like all other operating systems, is dependent on the creation of temporary files, caches, and backup copies for proper operations. However, afterwards, as these data created, it remains hidden on your Mac killing the place for no purpose.

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Good news for you! It is quite easy to delete these meaningless files, free additional GB, and completely clean your startup disk without affecting your personal data.

Here’s how you can remove the message about the error “Your startup disk is almost complete.” You need to delete files that you do not need and never use.

Deleting iTunes Backups

We love iTunes, but iTunes prefers to make backup copies. This is not all the story. Note that, in fact, any time you update iTunes, this update comes with a backup copy of the entire iTunes library. This means that with any update, you get a ton of backup copies when you only need it once. It is good to manually reinstall iTunes from time to time.

Remove the Trash

Sometimes, we ignore trivial recommendations, as a result, it causes slow operation of your system. The matter is that your Trash for files that are no longer necessary for you has to be cleaned up often. These files continue to take space on the disk of your Mac. Finally, you will probably think of it, so take out the Trash and press “Empty” to free yourself from the data piles of unnecessary data completely.

Apps within the Desktop

Any application contains its own personal folder for garbage, in which additional GBs are still taken. Like the usual Trash, you need to clean up these folders in order to remove the rubbish and clean up the disk space.

Delete the App Cache

The funniest thing about cache files is that they are really big because they are useless. At the beginning, caches work as the leading goal, because they are formed to speed up the processes. But as soon as this process is over, it will leave temporary files created by applications and system processes. In case you do not remove them, they will remain on your Mac for a long time. These short-term files will be a permanent task for your hard drive, because they will continue to accumulate and arrange your startup disk.

As an alternative, a user can clean up all caches with the help of MacFly Pro. It manages tons of system junk very fast. Thus, the easiest way to deal with these files is automated alternative application.  You will just need to locate your browser caches under the section User Cache Files, and it will delete the unnecessary data on time.