Well Microsoft finally released a free Antivirus and Malware application, and I must say, its clean, not overly processor intensive, and gets the job done. I personally endorse it, as I have been using it for some time and am very pleased.
Microsoft Security Essentials provides real-time protection for your home PC that guards against viruses, spyware, and other malicious software.
Microsoft Security Essentials is a free* download from Microsoft that is simple to install, easy to use, and always kept up to date so you can be assured your PC is protected by the latest technology. It’s easy to tell if your PC is secure — when you’re green, you’re good. It’s that simple.
Microsoft Security Essentials runs quietly and efficiently in the background so that you are free to use your Windows-based PC the way you want—without interruptions or long computer wait times.
If you want to get started right away, go to the Security Essentials Site, then click on the big blue “Download Now” button.
For the not so tech-savy people go here to learn how install, scan for viruses and malware, or fix an problem.