You install NTFS for Mac, restart the system, and the Startup Disk utility in System Preferences no longer shows your Windows partitions, and you cannot restart into Boot Camp anymore.
Apple macOS has a security feature called System Integrity Protection (also known as SIP or “rootless”). It is enabled by default to prevent third party processes from modifying certain system processes, files and folders.
In OS X El Capitan and macOS Sierra, Startup Disk utility only shows NTFS partitions mounted by the stock read-only NTFS driver. When you install our NTFS for Mac, NTFS partitions are mounted with our driver, and won’t show up in the native selector. It’s an internal limitation of macOS.
To circumvent that, we include our own startup disk selector that only shows NTFS partitions mounted with our driver.
In other words, to set a Windows partition as bootable, you’ll need to use the boot selector in the NTFS for Mac preference pane instead of the stock selector.
First, select BOOTCAMP partition in the list. Make sure the disk is mounted. Now press Startup button. Your Mac will boot from the selected disk after restart.