What Do You Do/Use to Protect Your Systems?

What the title says, yo.

What do you guys do to protect your computers?

What sorts of software do you use?

(I have Windows 7, so I need answers that can be applied to a Windows machine.)

You only need to browse the forums and check out some of the signatures listing what most users have installed.

Like yours then, huh?

:stuck_out_tongue:

That is just one of them ;D