How to enable system extensions on Apple Silicon M1 Mac?

Updated by Tim to BitLocker for Mac Tips on April 7th, 2021

Step 1: When installing M3 BitLocker Loader for Mac on Apple Silicon M1 Mac, you need to allow system extensions before reading/writing BitLocker encrypted drive.

Allow system extensions

Step 2: After opening security preferences panel, click "Lock" button to unlock the settings.

security preferences

Step 3: Click "Enable system extensionss...".

click Enable system extensions

Step 4: Click "Shut down".

click shut down

Step 5: Press power button until you see the following window, click "Options" to continue.

Enter to recovery mode on Apple Silicon MacBook

Step 6: Select "Startup Security Utility" from Utilities menu.

Startup Security Utility

Step 7: Click "Security Policy...".

Startup Security Utility

Step 8: Check "Reduced Security" option and "Allow user management of kernel extensions from identified developers", then click Ok.

Check reduced security option

Step 7: Restart your Mac.

Step 8: Click "Allow" option in Securtiy Preferences settings to allow system extensions.

Mac computer security privacy settings

After that, you can use M3 BitLocker Loader for Mac to open a BitLocker encrypted drive on Mac.