I don't get a notice about blocked system software, nor can I allow the system extension - what is going on?
First off, congratulations on your speedy new Mac! Apple has revised the way third party extensions are managed for Macs using their new chips - they are in fact entirely disabled and cannot be allowed by default.
Changing Security Policy for macOS to allow third party extensions:
- Turn off your system.
- Turn your computer back on, but keep holding the power button past the startup chime and Apple logo until you see a boot option selection screen:
- Choose Options and enter your password when prompted to do so.
- From the menu at the top of the screen, choose Utilities -> Startup Security Utility:
- After selecting your primary hard disk, click on the button labeled 'Security Policy...'
(If you have more than one copy of macOS installed, you will see more than one option as in the example below, otherwise there will only be one option.)
- Toggle the Reduced Security-mode and the Allow user management of kernel extensions from identified developers-options, then click 'OK'.
- Restart your Mac.
After following the steps above, you will be able to proceed as outlined in the article: How do I enable the required kernel extension for Microsoft NTFS for Mac by Tuxera?