Gizmo's Picks

Tech Support Alert has a Windows-oriented article entitled "The 46 Best-ever Freeware Utilities". While I don't agree with a lot of their picks, it does list a lot of good security tools for Windows users.

Update (10 Jul 2017): Peter Selmeczy has provided an alternate page for the above broken link: The 36 Best Free Utilities for your Computer (Apple and Windows).