Erase Assistant Is Not Supported on This Mac: How to Fix

Clare Weaver
Last updated: Nov 15, 2023

This post is mainly about why Erase Assistant is not supported on your Mac and how to fix it. Keep reading!

Erase Assistant makes it easier, safer, and more convenient to erase data while you sell or give away your Mac to others. Or you just want to reinstall your macOS.

However, you may get the "Erase Assistant is not supported on this Mac" pop-up message if your macOS version or chip does not meet the requirement.

Don't worry! Learn effective fixes for "Erase Assistant is not supported on this Mac" in this post. Read on for details.

Erase Assistant Is Not Supported on This Mac

Why Is Erase Assistant Not Supported on My Mac?

The macOS version and your Mac chip are responsible for the "Erase Assistant is not supported on this Mac" issue.

  • In the case that there is the "Erase Assistant not supported on this Mac" pop-up message, it may due to your Mac chip is not the Apple silicon or Apple T2 Security Chip.

Check your Mac chip: Press the Command + Space>Enter system information>Chip.

  • In the case that the Erase Assistant is not supported on this Mac Ventura/Erase Assistant is not showing up, it is because your macOS version is macOS Monterey earlier.

Check your macOS version: Go to Apple menuAbout This Mac.

Besides the two reasons we mentioned above, macOS glitches, no admin access, etc. may also lead to Erase Assistant-related issues like Erase Assistant not working/You are not authorized to open Erase Assistant.

How to Fix the "Erase Assistant Is Not Supported on This Mac" Issue

After figuring out why Erase Assistant is not supported on this Mac, it's time to learn some effective fixes or alternative tools for Erase Assistant.

Upgrade Your macOS

If your Mac has an Apple silicon or Apple T2 security chip, the easiest way to make Erase Assistant appear is to upgrade your macOS to macOS Monterey and later.

Erase Your Mac via Disk Utility

Both Erase Assistant and Erase your Mac with Disk Utility will erase all content and settings on your Mac. Back up important files before you perform the erase.

While the "Erase Assistant is not supported on this Mac" issue appears, you can erase your Mac via Disk Utility in Recovery Mode.

Here is how to erase Mac with Disk Utility in Recovery Mode:

Step 1: Boot your Mac in recovery mode.

  • For an Intel-based Mac:
  1. Restart your Mac.
  2. Press and hold the Command + R key combination until the startup screen appears.
  3. Enter the password if asked.
  • For a Mac with Apple silicon:
  1. Go to Apple menu > Shut Down.
  2. Press and hold the Power button on your Mac until the system volume and the Options button appear.
  3. Click the Options button, then click Continue.

Step 2: Click Disk UtilityContinue.

Step 3: Select the internal hard drive>Erase.

Step 4: Enter a name>Choose a format>Choose the scheme.

Erase Your Mac with Disk Utility

Step 5: Click the Erase button.

Bonus: How to Delete Multiple Files Quickly and Permanently

In general, moving the files to the trash does not delete them completely and they still occupy your Mac space. And there are still some leftovers although you uninstalled apps.

To delete multiple files or uninstall multiple apps completely in a time-saving and effort-saving way, you can have a try at BuhoCleaner - a powerful and user-friendly Mac cleaner.

In addition, if you are looking for a safe and permanent way to delete files, BuhoCleaner's Shredder feature helps a lot.

DownloadFor macOS 10.10 and above
100,000+ Satisfied Users Worldwide
BuhoCleaner Shredder


In this post, how to fix "Erase Assistant is not supported on this Mac" and temporary alternative tools for Erase Assistant are introduced in detail.

Hope these methods work for your Mac. Go and fix this tackle issue now!

Clare Weaver

Clare Weaver has been captivated by the world of Apple products since the launch of iconic iPhone in 2007. With a wealth of experience, Clare is your go-to source for iPhone, iPad, Mac, and all things Apple.