Yesterday I have installed FreeBSD alongside to a existing Windows 10 instance on my Workstation. Today, I want to show you how to do it.
My setup is a SSD with Windows 10 already installed and more than 100 GB free space.
Install FreeBSD normally (but pay attention to use the free space for freebsd during the partitioning).
After the install, you can switch to the shell to take final settings. There you can enter the following command:
boot0cfg -B ada0
That’s it. Reboot and everything should work fine ;-)