Currently just using Antivir free and DefenseWall So Antivir paid covers 99,6% (source AV comparatives), free version is about 3 to 4 percent worse (no anti spyware), so I settle for 93% safety, DefenseWall takes out another 95% (at least, possibly more, but for arguments sake). so this leaves my infection chance of 0,35 percent. For post infection warning I have got Rising FW, which silently blocks outbound and checks the hash of programs seeking outbound control (and warns when it is changed). Anvir Task Manager is used as an startup entries IDS (real nice under appreciated program), so when this 0,35% happens I hope to be informed and recover to a previous image of my (off line) external harddrive. What do you think is this risk acceptable?