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15 fabulous, free PC security programs

Safeguard your PC with our free downloads

Turn on your PC and you're immediately vulnerable. Protect yourself for free today with PC Advisor's favourite 15 free security tools.

Eliminating malware

From firewalls and antivirus software to tools for combating rootkits and spyware, here are some great downloads that will protect your system against malicious attacks.



ZoneAlarm may be the most popular free firewall on the planet – arguably, this is the product that made everyone conscious of the need for firewall protection. The most recent release supports Vista (Download ZoneAlarm for Vista here.).

It's easy to use and its method of configuring outbound protection is particularly useful.

Whenever a program tries to make an outbound internet connection, ZoneAlarm announces it with a pop-up alert. You can then permit or disallow the connection, on a one-time basis or permanently.



Comodo Firewall Pro


ZoneAlarm is popular, but that doesn't make it the best free firewall you can find. One formidable rival is Comodo Firewall Pro, which independent testing site Matousec rated as the top firewall.

Matousec found that Comodo offered the highest level of 'antileak protection', one measure of a firewall's effectiveness.


Tired of dealing with bloated, overpriced security suites that bog down your system and cost a fortune, when all you want is antivirus software?

Then get Avast, a superb antivirus program that's free for home use.

Because it's a lean piece of software, it imposes a relatively light burden on system resources and RAM. Despite this, it kills viruses in their tracks and has plenty of extras, including live scanning to prevent viruses from infecting your PC. Download Avast Home Edition for free here.

NEXT PAGE: more free malware killers > >

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