Top 5 Windows Antivirus Software - Free Protection

Here is free antivirus software I ever used and are considered as the leading and popular free antivirus software that can be free downloaded online. You can download these antivirus firewall and use them for truly, totally free to real-time protect your computer from the evil internet. BTW, what I am using is avast! free antivirus, updated every day.

Avast Free Antivirus - Free Registration

avast! Free Antivirus is one of the world's leading and trusted free antivirus programs. Now, over 100 million people is protecting by this free antivirus software. It provides basic antivirus, anti-spyware and secure email tools for totally free.

What I like most is its Silent mode and real-time shield. Generally, avast! will display on-screen messages/pop-ups/alerts when threats are attacking, but when a full-screen program is running, nothing will show up if Silent mode is on. The real-time shields include file system shield, web shield, mail shield, P2P shield, IM shield, and more. These shields monitor all suspicous thing, but never slow down you computer.

Download Now avast! Free Antivirus Software

Avira AntiVir Personal - FREE Antivirus Firewall

Avira AntiVir Personal is free of charge and contain the following protections:

• AntiVir - protection against viruses, worms and Trojans
• AntiDialer protection against expensive dialers
• AntiRootkit protection against hidden rootkits
• Faster Scanning up to 20% faster
• AntiPhishing protection against phishing
• AntiSpyware protection against spyware and adware
• NetbookSupport for laptops with low resolution
• QuickRemoval eliminates viruses at the push of a button

If you need Anti-MalWebsite, Anti-Malware and RescueSystem, upgrade to Avira AntiVir Premium; If you need AntiSpam, FireWall, GameMode, Backup-System, AntiBot, ParentalControl, upgrade to Avira Premium Security Suite.

Download Free Avira AntiVir Personal

AVG Anti-Virus Free Edition - Award-Winning

The AVG Anti-Virus Free Edition is awarded the No. 1 downloaded program on CNET's Download.com. Over 50 million users have selected this free antivirus software for anti-virus, anti-spyware and LinkScanner protection at no charge. There is also a free antivirus edition for Linux.


Here is the testimonial from AVG users:

"I can't tell you how many of my friends have replaced their antivirus programs with AVG and never been happier just like me!" - Dale Horn

Download AVG Anti-Virus Free Edition

BitDefender Antivirus Free Edition - ICSA Certified Engine

BitDefender Antivirus Free Edition brings the world's most effective antivirus engines to your computer for free! It aslo uses the ICSA Labs certified scanning engines like other BitDefender's Antivirus software. BitDefender Antivirus Free Edition can scan your computer immediately or in a scheduled plan.

The powerful scan engines detect and remove all viruses in the wild every time you need it, or isolate the infected files in quarantine, greatly diminish the risk of getting your computer infected.

Download BitDefender Free Anti-Virus Software

Comodo Internet Security - Safe Computer & Surfing

Comodo FireWall and Antivirus Free Edition is now Comobo Internet Security. It protects your PC from malware, viruses, worms, trojans and more.

Comobo Internet Security features both on-demand (when you want it) and on-access (when you open a program or file) scanning, email scanning, process monitoring, worm blocking and scheduling. It also provides a tool bar for safe surfing.

The more advanced antivirus software from Comodo - Internet Security Pro includes extra features like Wi-Fi safety, Default Deny Protection, Expert Help, etc.


Comodo Antivirus is free to both home AND business users.

Download Comodo Free Antivirus & Firewall Software