What to Do if Erase Assistant Is Not Supported on This Mac

Erase Assistant simplifies the process of securely erasing your data when you're selling, giving away, or reinstalling macOS on your Mac.

But, you might see the message "Erase Assistant is not supported on this Mac" if your macOS version or chip isn't compatible.

Don't worry! This post will guide you through effective solutions for this issue. Keep reading for more information.

Why Does Your Mac Say "Erase Assistant Not Supported on This 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 the Apple menu＞About 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.

What to Do if Erase Assistant Is Not Supported on Your Mac

After figuring out why your Mac displays "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.

To upgrade your Mac, click the Apple menu > System Preferences > Software Upate.

Erase Your Mac via Disk Utility

While the "Erase Assistant is not supported on this Mac" issue appears, you can erase and reset 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 Utility＞Continue.

Step 3: Select the internal hard drive＞Erase.

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

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.

Conclusion

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!