When I first got my laptop baby (MS Vista), I'm glad that it comes together with anti-spyware within the Vista OS itself. It is called "Microsoft Windows Defender". So I thought I could save my time not to install any anti-sypware anymore. Something not right after almost a year until today, MS Windows Defender do not catch any spyware threat. Unlike my previous anti-spyware from LavaSoft (Ad-Aware) which installed in my XP catches quite number of threats within a month. I start suspecting this free feature from Microsoft. What a another crap from Microsoft? So, I decided to my little research here.
I do a full system scan on the following 3 free products and here is the result:
Threats caught by Ad-Adware consist of "Tracking Cookies" and "MRU Object" but AVG Anti-Spyware only consist of "Tracking Cookies" but Windows Defender has nothing. Although these threats are not critical but I would prefer my system are 100% clean from them.
Based on my little research here, I would like to conclude that the Ad-Adware from LavaSoft is the Best Free Anti-Spyware. Most importantly, don't rely on MS Windows Defender. If your system resource is not a limitation like my case, I would suggest you to install both Ad-Adware and AVG Anti-Spyware in your system.