It is tempting to think that the process of securing a Windows 10 device can be reduced to a simple checklist. Install some security software, adjust a few settings, hold a training session or two, and you can move on to the next item on your to-do list.
Alas, the real world is far more complicated than that.
There is no software magic bullet, and your initial setup simply establishes a security baseline. After that initial configuration is complete, security requires continued vigilance and ongoing effort.