The Best System Utility in PC History.
With more than 10,000 improvements, Advanced SystemCare Free v3 scans more, repairs more, cleans more, and optimizes more for your computer than ever before.

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Ad-Aware 2008 Free is available for personal home
Ad-Aware provides protection from known Spyware including: Data-mining, aggressive advertising, Parasites, Scumware, selected traditional Trojans, Dialers, Malware, Browser hijackers, and tracking components.
With the release of Ad-Aware SE Personal edition, Lavasoft takes the fight against Spyware to the next level.
With Lavasoft’s all new Code Sequence Identification (CSI) technology, you will not only be protected from known content, but will also have advanced protection against many of their unknown variants. To further protect you, Ad-Aware SE Personal Edition also has the capability to scan …

AVG AntiVirus Free – antivirus and internet security software for the Microsoft Windows, Linux, and FreeBSD computing platforms

Spybot Search and Destroy – free antivirus, spyware, malware removal