Ad-Aware Pro Internet Security - Remove malicious software and protect your privacy with this professional-level anti-spyware plus antivirus program.
Spybot - Application to scan for spyware, adware, hijackers and other malicious software
Applications
Adobe Reader X - Adobe® Reader® software is the global standard for electronic document sharing. It is the only PDF viewer that can open and interact with all PDF documents. Use Adobe Reader to view, search, digitally sign, verify, print, and collaborate on Adobe PDF files.
Anti-Virus
Microsoft Security Essentials - Microsoft Security Essentials is a free service designed to help ensure the health of your PC. You can check for and remove viruses, spyware and other evil software.
Trend Micro - Trend Micro HouseCall makes it easy to protect your home network, personal identity, and online activity.
Browsers
Internet Explorer 9 - Internet Explorer 9 is the most secure version of Internet Explorer to date and now it's easier to install. Download the latest version for free.
Mozilla Firefox - The Web is all about innovation, and Firefox 3 sets the pace with dozens of new features, including the smart location bar, one-click bookmarking and blindingly fast performance.
Opera - Discover the new standard in Web browsing. Download Opera today to get the fastest and most powerful Web browser available and make the most of your time online.
