With behavior-based threat detection and integrated real-time monitoring, Ad-Aware Anniversary Edition focuses on core consumer security needs. Instead of adding layers of bells and whistles--thereby slowing your computer and scans down--we have decided to focus on what really matters. Anniversary Edition provides advanced threat protection, and is significantly lighter and faster than our previous versions.

Avast Home Edition is a complete ICSA & Checkmark certified antivirus, Checkmark certified anti-spyware & anti-rootkit package. Avast includes the following components: On demand scanner with skinnable simple interface, just select what do you want to scan in which way and press the Play button; On access scanner, special providers to protect the most of available e-mail clients; Instant messaging--ICQ, Miranda; Network traffic--intrusion detection, lightweight firewall; P2P protection for Kazaa, BitTorrent; Web shield--monitors and filters all HTTP traffic; NNTP scanner--scans all Usenet Newsgroup traffic and all operations with files on PC; Boot time scanner--scans disks in the same way and in the same time as Windows CHKDSK does. Version 4.8.1335.90205 brings many improvements in the scanning engine as well as performance optimizations. You'll have to register (free) on the publisher site to be able to continue using this program after 60 days.

Basic anti-virus and anti-spyware protection for Windows. Includes LinkScanner safe-searching and safe-surfing protection. * The most downloaded software on CNET's Download.com * Trusted by 80 million users worldwide * Easy to download, install and use * Protection against viruses, spyware, and web-borne threats * Compatible with Windows 7, Windows Vista and Windows XP Availabile in multiple languages - see http://free.avg.com/download-avg-anti-virus-free-edition for the latest list.

Avira AntiVir Personal Free Antivirus is a comprehensive, easy to use antivirus program, designed to offer reliable free of charge virus protection to home-users only. Avira offers: Extensive Malware Recognition of viruses, Trojans, backdoor programs, worms; Automatic incremental updates of antivirus signatures, engine and entire software; Permanent virus protection, with Virus Guard real time monitoring; Install and configuration in just a couple of steps, setup to protect your PC in minutes; Virus protection against known and unknown threats, using an advanced heuristic system; Scheduler where you can set the scanner to make automatic virus scans or updates on your system; Forum and phone support; Knowledge Base with virus descriptions available on web site; Rootkit Detection and Removal; A modularized AV-search engine for improved scan performance. Version 8.2.0.337 may include engine updates, enhancements, or bug fixes.

CCleaner is a freeware system optimization, privacy and cleaning tool. It removes unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities such as your Internet history. Additionally it contains a fully featured registry cleaner.