You can use Spybot Search and Destroy at no cost to secure your unprotected computer. You can also download and use Spybot software to investigate how well an anti-spyware program you are already using is protecting you. You may be surprised. Spybot Search and Destroy: Both Ad-aware and Spybot are free, so I downloaded and ran them both, and then I compared the results.
Ad Aware Plus is one of several antivirus software protection programs created and maintained by Lavasoft, a private company, begun in 1999 and headquartered in Sweden. Lavasoft was one of the first software companies to detect and create antivirus software programming for download. Ad Aware is available is small business, enterprise, academic and non-profit. Lavasoft provides antivirus software and systems support. Their success can be rated by the over 250 million Ad Aware antivirus downloads world-wide.