http://www.free-antivirus.info
Looking for free anti-virus software? This popular site offers a roundup of detailed reviews of free anti-virus programs and services. The site also takes a look at anti-spyware and firewall software.
http://www.alwaysecure.net/
This site offers a good roundup of freeware programs to keep your PC safe and secure against the various hazards that lurk in cyberspace these days, including spyware, viruses, spam, and more.
http://www.scancomplete.com/
This site offers a roundup of freeware anti-virus and anti-spyware programs. You'll also find freeware programs to help you battle spam, as well as remove adware from your computer.
http://housecall.trendmicro.com/
A free Web-based anti-virus tool that lets you scan your PC for viruses, spyware, worms and other digital threats. The program then displays a list of any infected files it finds and allows you to remove them from your computer.
http://www.pc-st.com/us/
How secure is your computer? This freeware program checks your computer's security against viruses, spyware and hackers and grades the effectiveness of your protection software (including anti-virus programs, spyware scanners, and firewalls). (For Windows).
http://www.guardyourpc.com/?src=WC-147994aaaBD87:33335:
Follow the instructions here to request a free version of Norton SystemWorks. This popular program includes utilities that protect your PC against virus threats and help you recover from system failures, etc. You must be 18 or older to request this item. Allow 6 to 8 weeks for delivery. (U.S. only).
http://www.grisoft.com/doc/products-avg-anti-virus-free-edition
Here's an outstanding freeware anti-virus utility that also offers you free monthly updates. An easy-to-use program, AVG features resident protection, an E-mail scanner and automatic healing of infected files. Note: this program is free for personal, home usage only. (For Windows).
http://www.free-av.com/
This easy-to-use freeware antivirus utility detects over 80,000 viruses and includes a resident monitor and desktop program. Scans for DOS, Windows, macros and Java viruses. Available in German and English. (For Windows).
http://www.trendmicro.com/download/free_cd/
Fill out the form to request a free Trend Enterprise Solution CD, which contains fully-functional versions of anti-virus products that can protect virus entryways into your network. Offer available for corporate end users only. International availability.