How to fix Your startup disk is almost full error?

by Olivia Morelli - -

Question

Issue: How to fix Your startup disk is almost full error?

Hello, I get pop-ups and messages about my disk being full. It all shows up on the Mac computer. I am sure that it is NOT full, but Your startup disk is almost full error is not stopping. What is the startup disk, and what is happening? Can you provide any tips on how to fix the error or what is the reason for the issue in the first place? 

Solved Answer

Your startup disk is almost full error is probably the issue that every macOS user encounters at least once because it is a common problem that drives people crazy.[1] The error itself mainly means that your device is running out of space on the primary disk drive, and it is not good news since that can affect various processes and the performance of applications, the computer itself.

These messages can appear on the screen out of nowhere, or when you reboot the machine, try to run a program or install a new tool. Your startup disk is almost full macOS error can often occur after the new release of the OS and, in such cases, the message is not related to hardware or software issues. 

The problem might be related to the fact that too many files are occupying the hard drive, so the lack of space is indicated with Your startup disk is almost full error until it reaches the extreme state when the system suddenly crashes or cannot work properly.

Mac OS requires to have at least 10 percent of the disk space to be left free, so all the processes can run as supposed to, so these errors and warnings shouldn't be ignored. The best and the easiest solution for Your startup disk is almost full error is to clean up the hard disk.

This is the way to fix Your startup disk is almost full error because you make the free space and allow all the processes to run smoothly. There are a few methods that allow doing so, and you can choose the method that is easier for you. Some of the newer macOS releases include hard drive optimization features,[2] so these issues can be managed by users themselves.  Your startup disk is almost full error messages

How to fix Your startup disk is almost full error

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

The first thing to address is that Your startup disk is almost full error is not a crucial warning that means corruption of the system. This issue is manageable and not related to malware[3] or any major problems with software or hardware. Even though the message is disturbing and makes the user frustrated, the problem with disk space is fixed when you clean out useless programs, files and literally control what takes up the most space on the disk and keeps your device from properly working.

You can end those Your startup disk is almost full error pop-ups by running a tool like Reimage since optimizers can keep the junk files cleaned and indicates when the app is useless and not used at all, so you can uninstall such programs and save space. As for all the best methods, follow the guide. 

How to fix Your startup disk is almost full error

Get information about the disk space usage to fix Your startup disk is almost full error

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • To know what is taking the most part of the disk, go to the Apple menu by clicking the logo at the top left corner.
  • Then choose About this Mac and select Storage to see details.
    Check the storage

Search for large files via Finder

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.
  • Open the Finder folder and click Command + F.
  • Change the search settings to This Mac and choose File Size as the primary criterion.
  • Then select Is greater than and pick file size to narrow the search results. Go for 500MB or 1GB, for example.
  • When you find items that are too big, you can drag them into the Trash or select Command + Delete.

Clear Downloads folder and Trash to fix Your startup disk is almost full macOS error

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To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

Delete stuff from these folders when you determine of the file that you downloaded is no longer in use or needed. Also, when you leave files in the Trash they are not deleted still, so actually get rid of those files.

Restart the Mac and check the storage again.

Use storage optimization tools to fix Your startup disk is almost full error

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Reimage Reimage.

If you are running macOS Sierra or higher, there is a built-in option for Optimized Storage that solves problems with a full hard drive and moves files into the cloud for you. The storage tool provides Recommendations and features that you can enable in the Storage tab by clicking the Manage button.Use storage tools

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Reimage - a patented specialized Windows repair program. It will diagnose your damaged PC. It will scan all System Files, DLLs and Registry Keys that have been damaged by security threats.Reimage - a patented specialized Mac OS X repair program. It will diagnose your damaged computer. It will scan all System Files and Registry Keys that have been damaged by security threats.
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About the author

Olivia Morelli
Olivia Morelli - PC & Mac repair expert

Olivia Morelli is a young, but a perspicacious IT expert who is currently just a year away from a Bachelor’s Degree in Software Systems. Her primary passion is cyber security, however, thanks to her detailed understanding of computer networks, operating systems and hardware, she can find a fix for any PC or Mac issue...

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