Operating system

Published on September 29th, 2020 | by Sudhanshu Sorout


A Quick Guide to Fix Mac “Startup Disk Full” Error

At some point, you might experience an error on your Mac indicating that your startup storage space is running out. This is likely to happen if your Mac is over 85% full. It will inevitably result in the slow performance of your computer. This guide explains what you need to know about startup disk full error and how to fix this issue.

Where did your Mac storage go?

The first question you need to answer is how your Mac’s storage space has been used. For starters, there are apps installed on your Mac that run on the background taking up a lot of space. You can stop them to help increase speed and efficiency on Mac. Similarly, some files on your Mac may not be quite necessary. So, check what’s taking up space to find out what you can cut:

  • Click on the Apple icon on the menu at the top –left corner of your screen.
  • Choose “About This Mac”
  • Click on “Storage”

You will see the amount of storage used and the amount of space available on your Mac.

What to do when your startup disk is full
Now you have seen the amount of storage on your Mac computer, it is time to fix the issue. You can now take steps to fix the startup disk full error message that keeps popping up. It is quite simple. You need to try and restore the space on your Mac.

First things first: you can use the Disk Map app to scan and display your storage usage. The tool is useful in showing the areas where you need to clean or remove junk to increase the space on your Mac. To free up disk space, you can:

  • Delete files from your Mac
  • Move files to an external hard drive or cloud storage.
  • Install a second internal hard drive on your Mac

The following are other easy steps that you can also take to reclaim space on your Mac:

Clear cache files

Cache files are crucial as they efficiently help your Mac run programs. However, it gets to a point where the caches unnecessarily take up space on your hard disk. You should periodically remove them to free up space. You can delete cache files manually or use a cleaner app to handle them.

Uninstall unwanted Applications

Removing old and unwanted applications is another excellent way of creating space on your Mac. Go through the folder with applications and assess the ones that should be removed based on their usefulness. You will need to find the right way to remove them entirely so that you do not leave any files that will continue filling up the disk space.

Clean up your photo library

Photos are some of the items that take up the most space of your disk. Sometimes you will have so many duplicate ones taking up space. In this case, try to find any photos which are similar and delete them to create space.

Wrap up

Space is crucial for your Mac. It allows you to work efficiently, increase the performance of your Mac, and avoid slow downs. In case your disk is full, you need to take immediate action to correct that to get back to optimal speed and performance.

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