Use with caution. With drivers disabled you won't be able to use Thunderbolt Ethernet adapter.
- Reboot with CMD+R pressed.
- Open Terminal, copy & paste this and press Enter:
sudo csrutil disable
- Reboot in normal mode.
- Open Terminal, copy & paste this and press Enter:
sudo mv /System/Library/Extensions/AppleThunderboltNHI.kext /System/Library/Extensions/AppleThunderboltNHI.kext.BAK
- Reboot with CMD+R pressed
- Open Terminal, copy & paste this and press Enter:
csrutil enable
- Reboot