With PC Tools AntiVirus Free Edition you are protected against the most nefarious cyber-threats attempting to gain access to your PC and personal information. Going online without protection against the latest fast-spreading virus and worms, such as Netsky, Mytob and MyDoom, can result in infections within minutes.
Once infected, the virus will usually attempt to spread itself to your friends, family and associates by accessing your email contacts and networked PCs. The infection may also allow hackers to access files on your PC, use it to launch attacks against other computers and websites or to send mass SPAM email.

That's why PC Tools AntiVirus Free Edition provides world-leading protection, with rapid database updates, OnGuard™ real-time protection and comprehensive system scanning to ensure your system remains safe and virus free. PC Tools products are trusted and used by millions of people everyday to protect their home and business computers against online threats.
PC Tools AntiVirus Free Edition feature highlights
Protects your PC as you are working, surfing and playing
Detects, quarantines, disinfects and destroys Viruses, Trojans and Worms
OnGuard™ protects your computer against threats in real-time
Automatically checks for frequent updates against the latest threats
Pc  tools

Download:

http://www.pctools.com/mirror/avinstall.exe