Windows Defender is a free antispyware software (it comes with Windows XP and Vista) that is supposed to protect your pc against spyware. But why do so many people choose other third party software? Today it’s time to reveal 10 reasons that make Microsoft’s program not good enough to deliver effective protection.
- Windows Defender allows too much spyware to evade it. It’s not that we dreamed about this last night: sources that are notorious worldwide have performed tests revealing this. Just check the links bellow and you’ll see the truth:PC Mag: “It runs a little slowly, and in a quick test against the popular spyware tool Ad-Aware, it was beaten hands down.”
ZDNet: “Windows Defender missed half of the spyware on our test machine, and didn’t fully remove half of the spyware samples in our tests.”
PC Advisor: “According to Australian testing company, Enex Testlab, in full scanning mode Windows Defender could only pick up 53.3 percent of an unspecified list of malware threats thrown at it.“
…which leads us to point two:
For the next 9 reasons, go to Windvis
Personally I don’t use it either, instead for my machine I use Ad-Aware, Spybot S&D and also SpywareBlaster but to each his/her own preferences… 
[...] PakNik Blogged about a good topic today on pcproblems.wordpress.comHere’s a quick excerpt: [...]
[...] Check it out! While looking through the blogosphere we stumbled on an interesting post today.Here’s a quick excerptWindows Defender is a free antispyware software (it comes with Windows XP and Vista) that is supposed to protect your pc against spyware. But why do so many people choose other third party software? Today it s time to reveal 10 reasons that make Microsoft s program not good enough to deliver effective protection. Windows Defender allows too much spyware to evade it. It s not that we dreamed about this last night: sources that are notorious worldwide have performed tests revealing this. Just [...]
Windows Defender is free, but not a very good spyware remover. These days, you should rely on two or three antispyware. For example, using both Lavasoft AdAware and SpyBot.