New ThinkPad BIOS Settings for Thunderbolt 3
Many of the new Lenovo ThinkPads coming out in the first half of 2017 will carry a new Thunderbolt 3 port which is one port that supports both Thunderbolt and USB-C. Lenovo will also offer a Thunderbolt dock which provides network, display, audio and USB ports for simplified cable management as well as a USB-C dock. Most of the folks I know will probably first think "Can I PXE boot from the Thunderbolt dock to deploy an OS?" and the answer is "Yes... but..." You see Thunderbolt devices have to be "approved" in order to be connected and by default this process requires user approval in the OS. Obviously you can't do that if you're trying to PXE boot. So in order to PXE boot there have to be some settings changed in the ThinkPad Setup program: Security Level = No Security Thunderbolt Device = Enabled USB Device = Enabled The last item could be confused with USB devices attached to the Thunderbolt dock. However, this setting