How to fix “Insufficient space to install macOS Ventura” error

Summary: This article will teach you how to free up space to install macOS Ventura.

To further improve your productivity and gaming experience on your Mac, Apple has brought many new features to macOS Ventura. Ready to upgrade your MacOS device, but don’t think you have enough storage space?

Do not panic. Keep reading this blog to learn how to free up space for the macOS Ventura upgrade.

How to fix "There is not enough space to install macOS Ventura" The mistake

How much space does macOS Ventura take up?

The MacOS Ventura installation package is approximately 12 GB. But it needs extra space to install it. If you’re upgrading from macOS Sierra or later, the new macOS Ventura requires at least 35 GB of free space. However, if you’re upgrading from a previous version, macOS Ventura requires up to 44GB of free storage.

How to Check Free Space on Mac

Now that you know how much space you need to upgrade to macOS Ventura, let’s see how much free space you have left.

  1. Click the Apple menu, choose About This Mac, and then click the Storage tab.
  2. After a few seconds, you will see a colorful save bar. And the last white section is Available Storage.
Check the available storage on your Mac

Do you have enough free space? If not, read on to learn how to free up space for macOS Ventura.

How to Free Up Space for macOS Ventura Update

In the following sections, we will show you how to fix the insufficient space to install MacOS Ventura error.

Optimize Mac storage

MacOS Sierra and later have a built-in optimization tool. You can open it by clicking the Manage button above the save bar.

After opening it, you will find four recommended optimizations. All you have to do is follow the instructions to optimize your storage.

Optimize Mac storage

You may also notice a category called System Data in the sidebar of the Storage Management window that can take up anywhere from tens to hundreds of gigabytes of space. However, you cannot open it to see what files it contains. We have an article about it, click the link below to find out.

Also read: How to clear system data storage on Mac

Clean up disk space

Do you know how many junk files are on your Mac? If not, do a quick scan with Mac cleaner BuhoCleaner. Its Flash Clean feature cleans log files, cache, dmg files, Xcode, etc. on your Mac. allows you to quickly find junk files such as

  1. Download, install and launch BuhoCleaner on your Mac.
  2. Click the Scan button in the right column.
  3. After the scan is complete, you will know how much space you can save.
Clean up disk space with BuhoCleaner

Remove unnecessary files

Do you regularly clean out your Downloads folder? Many of the files in it may no longer be valid. Eliminating them will help you reclaim space.

Just open the Finder, click Download, sort the files by time, name or size, and remove the unwanted files to the trash.

Remove junk files from your Mac

Likewise, check folders like Songs, Movies, and Podcasts to delete unnecessary media to free up more space.

Uninstall unused apps

You may have a lot of apps installed on your Mac. Are there apps you never use or haven’t used in a while?

If you’re running low on storage space, uninstalling these junk apps can also help free up space.

Apps downloaded from the App Store and the web can be uninstalled using the Finder. However, note that this method only deletes the application itself, not all files.

To uninstall the app completely, try BuhoCleaner. Its App Uninstall tool removes apps without leaving any traces.

  1. Make sure BuhoCleaner is installed on your Mac.
  2. Launch it, click Uninstall an app, and then click Scan.
  3. Check the boxes next to the apps you want to remove and click Remove.
Completely uninstall apps on Mac with BuhoCleaner

Related Article: 4 Ways to Completely Disable Apps on Mac

Delete duplicate files

Creating duplicate files is inevitable when you use your Mac. If you don’t clean them, they will pile up and take up more of your valuable space.

Finding duplicate files manually is a difficult task. Fortunately, you have BuhoCleaner, a handy duplicate finder. It can find and delete duplicate files in every folder on your Mac.

  1. Download the free version of BuhoCleaner.
  2. Install and launch it.
  3. Click Copies in the sidebar and select a folder or drive to scan.
  4. After the scan is complete, you can preview and delete all unnecessary duplicate files.
Find and delete duplicate files on Mac with BuhoCleaner

Move files to iCloud or an external drive

Deleted all the junk files but still not getting enough space? Move some of your files, especially large files and files you won’t use for a while, to iCloud or an external drive.

Simply select the files you want to move, drag or copy them to the destination folder, and delete the original files from your Mac.

Delete Time Machine local images

Many users claim that they are unable to install macOS Ventura even if they have enough storage space. Why?

Because the time may come from your machine. Here’s what you need to do.

  1. Click Apple menu > System Preferences > Time Machine.
  2. Make sure the Automatically back up option is checked. If so, remove the box.
  3. Launch Terminal using Spotlight or Launchpad.
  4. Paste the command tmutil listlocalsnapshots In Terminal and press Return.
  5. If there are local Time Machine snapshots, you’ll see a list of backups sorted by date.
  6. Continue to execute the command tmutil deletelocalsnapshots "xxxxxxx" (“xxxxxxxx” refers to the Time Machine backup date.)
  7. Repeat step 6 to remove any other images you don’t want.
Delete Time Machine local images


Hopefully, you’ve freed up enough space to install macOS Ventura. Which way was the best for you?

As you can see, we have mentioned BuhoCleaner several times. It’s a really handy Mac cleaning and optimization tool. We have already mentioned some of its features and there are many more waiting for you to discover. Go and try it yourself.

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