3 Tips to Manage Mac Storage When Disk Is Full on Mac

January 20, 2022Ashley Mae

Get a prompting message saying that disk is full on your Mac? Want to figure out what you can delete when Mac does not have enough disk space?

You may easily experience some serious performance issues when your Mac is running out of disk space. This post will guide you to free up Mac disk space, especially when you get prompted that your Mac is low on memory, disk is full on Mac, or Mac says not enough disk space.

Disk Full Mac

Part 1: Disk Full Mac - Best Way to Free Up Mac Disk

When there is not enough disk space on your mac, you can delete some old large files like songs, movies, and other media files to free up your Mac disk space. If you don't know what data you should erase, you can turn to the professional Mac data cleaning and managing software, Mac Cleaner.

Mac Cleaner


Mac Cleaner

  • Find and delete large & old files, junk files, caches, and other unwanted data on Mac.
  • Monitor current Mac disk utilization, battery, memory, and CPU
  • Offer file manager, uninstaller, optimizer, and more features to manage Mac disk space.
  • Remove virus, adware, malware, and more to protect Mac and improve its performance.
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Step 1:
When the startup or scratch disks are full on Mac, you can free install and run this Mac Cleaner to get more Mac storage. When you enter it, you can first click on Status to check information about your Mac disk, memory, and CPU.
Getting Started
Step 2:
To get more Mac memory and disk space, you can click Cleaner on the left column. You are offered 8 main cleaning functions. For instance, you can use the Large & Old Files, System Junk, iPhoto Junk, Email Junk, Similar Photos, or Duplicate Finder to find useless Mac data with ease.
Main Interface
Step 3:
For instance, you can choose the Large & Old Files option. Click on the Scan button to quickly locate all old and big files on your Mac. You can simply click the View button to check them.
Scan Large Old Files
Step 4:
In these scanning results, you need to choose all files you want to remove, and then click the Clean button to delete them and free up Mac disk space.
Clean Large Old Files

If you want to clear caches, logs, duplicates, uninstall apps like Safari and their leftovers, or compress large pictures to reduce the file sizes, you can also rely on it. For more useful tools, you can click on Toolkit to access them.

Clean Large Old Files

Part 2: Using Built-in Storage Management Feature to Get More Mac Disk Space

Apple has designed built-in storage management features for Mac users to optimize Mac storage and get more disk space. If you are using a newer Mac system like macOS Sierra or later, you can take the following guide to fix disk is full on Mac issue.

Step 1:
Click the Apple icon in the top-left corner of the Mac screen. Select the About This Mac option from the drop-down menus. A new pop-up window will appear on the screen and show an overview of various information about this Mac. You can check the Mac model, serial number, macOS, memory, startup disk, and more.
Check About This Mac Information
Step 2:
To free up Mac disk space, you can click on the Storage tab. Then you can see the available amount of this Mac storage space. Click Manage button to start managing Mac data.
Manage Mac Storage
Step 3:
In the Recommendations shown, you are provided with 4 key features to free up Mac storage, Optimize Storage, Store in iCloud, Empty Trash Automatically, and Reduce Clutter.
Mac Storage Managment Reccomendations

Part 3. Delete Mac Data and Uninstall Apps Manually to Free Up Mac Disk Space

You can also choose to uninstall some unused apps to free up Mac space. You can go to Storage under the About This Mac, and then choose Applications on the left to view all installed apps on your Mac. Also, you can directly uninstall apps through Launchpad.

Step 1:
Open Finder on your Mac and choose the Applications option. Through Finder, you are also allowed to check Mac apps and their associated sizes.
Check And Manage Apps On Mac
Step 2:
When you find the apps you don't use anymore, you can simply drag them to the Trash. Then you can simply empty Trash to permanently remove them and free up disk space.

Part 4. FAQs of Disk Is Full on Mac

1. How to quickly manage Mac when the disk is almost full?

If your Mac is running a newer macOS version, you will see a prompt on the top-right of the Mac screen when the disk is full, or not enough disk space. You can directly use its built-in Optimized Storage option to solve the disk full Mac problem. Just simply click on Manage button in the popup, and then use Optimize Storage or other features to get more disk space.

2. What to do when Mac disk is almost full but you don't want to delete files?

Besides deleting Mac files and clearing up storage, you can choose to copy Mac files to an external hard drive, or back up Mac data to cloud storage.

3. Can I set my Mac automatically empty trash?

Yes. You can easily set the auto-empty trash through Apple Empty Trash Automatically feature. On your Mac, click the Apple menu in the top-left corner, click the About This Mac option, choose Storage, and then click the Manage button to turn on Empty Trash Automatically.


It's a common situation that the disc of your Mac computer is full. You can use the three methods above to easily delete Mac data and uninstall apps for getting more disk space.

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