Top AntiVius + Firewall Combination

Some of the best Internet Security Suite (Antivirus + Antispyware) with the following specifications :

- Does not slow down the system
- Fast scan engine
- Automatic updates that work

1) AVG (PDF manual)
http://free.grisoft.com/freeweb.php

2) Zone Alarm Free / Kerio Personal Firewall
http://www.zonelabs.com/
http://download.kerio.com/archive/

Kerio Personal Firewall 2.1.5 was the last freeware version that was strictly a firewall and not bundled with extra features that hog resources and slow down your system performance.

3) Ad-Aware SE / Spybot S&D
http://www.lavasoftusa.com/software/adaware/
http://www.safer-networking.org/en/download/index.html

4) Kaspersky 6, it even detects the shitty quicktime bundle being installed during iTunes.

5) Sunbelt Kerio Personal Firewall (Free) + Avast Antivirus Personal (Free).