Windows Defender?

Has anyone used this and found it to work?

I know i have some form of Spyware, Adware or Malware on my PC as i keep getting the same pop up's over and over, however Windows Defender tells me my system is fine and running perfectly with no Spyware, Adware or Malware.

Can anyone recommend any Free downloads that effectively detect and delete these programs causing the annoying Pop ups?

Or suggest a good one to buy as soon as i can afford it.

Windows Defender?pop up blocker

Meh, it's OK, but I'd never trust it on it's own.

I have a site that will probably help you out. It includes links, guides, reviews, screen grabs of interest and, more importantly screen by screen how to's to sort out infections. It also gives my contact details, through you are free to just

message me via here on Yahoo! Answers

http://www.spam-spyware.info

You might also want to consider SiteAdvisor from McAfee: It it free, though there is an enhanced pro version.

(It warns you whether a webpage or link is likely to be dodgy - before you get caught out)

http://www.siteadvisor.com

Trusted spyware products include:

Ad-Aware

http://www.lavasoftusa.com

Search%26Destroy

http://www.safer-networking.org/en/index...

Sunblet Software's CounterSpy (15 day trial)

http://www.sunbelt-software.com