I think the one or possibly two most important things to securing a computer is No.1 Understanding what a computer actually is and No.2 Understanding what a computer actually does and how it does it. then you can possibly understand how and what is needed to protect your machine. bigc
That's not securing your PC - recovery is something you do after something's happened Not sure why that and many of the other options are in the poll though actually, as they are not securing a PC.
It depends on How you see things: I don't expect something to happen to my PC to use my Instant System Recovery software. Each night before I turn it off, I Rollback my PC to a Clean Snapshot. This is a Standard procedure of my Security setup. -Why Security must include only Firewalls and AntiMalware Scanners? Virtualization (e.g. Sandboxing) and Instant System Recovery are also Security layers.