The measured! Let M1 chip version of MAC can also write NTFS format disk, complete tutorial attached!

NTFS disks are known to be readable but unable to write data on macs. Usually we can solve this problem by installing an NTFS support software. This was no problem on previous Macs with Intel processors. But it’s a little different on the M1 chip Mac. Due to M1’s security policy, getting FULL NTFS support for M1 Macs is a bit more complicated at the moment.

So the following tutorial is for the M1 Mac. And make sure macOS is 11.0.1 or high (upgrade to the latest version is recommended).

Modifying a Security Policy

Turn off the M1 Mac and hold down the power button. Press and hold, and you should hear a “Duang ~” startup sound. Continue to press and hold until “Loading boot options” appears.

Then let go. The following screen will appear.

Note that if you use an M1 Mac Mini like me, this step requires a wired mouse and keyboard or an Apple Keyboard and pad. You can’t connect a bluetooth mouse or keyboard with a third party. The M1 Mac doesn’t have to worry about that.

Select Options and click Continue.

Then select a manager account and enter the account password to continue.

You then enter the familiar “Utilities” interface. Here you can reinstall the system, restore the time machine or wipe the disk and other operations.

But that’s not what we need. We need to click “Utilities” on the upper-left menu bar and select “Start Security Utilities”.

Select the system disk and click the Security Policy button in the lower right corner.

Which brings us to the crux of the matter. If you have never modified this, the default should be “Full security”. We need to select “Reduce security” below. And check the first “Allow users to manage kernel extensions from approved developers”. Then click “OK.”

After the modified security policy is applied, the system returns to start Security Utility. Click the menu bar in the upper right corner to restart the Mac.

Install the latest NTFS assistant

The next step is to download and install our NTFS support software. I recommend using the latest version of Chiyu NTFS Helper 3. Testing is available, free of charge.

ntfs for Mac

Once installed, turn on security preferences as prompted. Or turn on “Security and Privacy” in your system preferences.

To unlock the account, click 🔒 and click Allow.

You are prompted for password authentication and to restart the Mac. Enter password authentication and then restart the Mac.

After the restart, insert the NTFS external disk, and you can read and write data normally.