I have a script that I call from Terminal to boot into my Windows partition:
#! /bin/bash sudo bless -mount "/Volumes/BOOTCAMP" -legacy -setBoot sudo reboot
After updating to El Capitan (10.11.1) I can’t use it anymore. The error message says something about being unable to set a disk property, so I’m guessing this is related to the security features that were added in this update.