1. Avira Premium Security Suite 9
I often recommend Avira's free AntiVir virus scanner (www.free-av.com)—I especially like the fact that it offers a bootable rescue CD as a free download. Unfortunately, I didn't find quite as much to like in the full Avira Premium Security Suite 9. A significant bug in the on-demand malware scanner could leave users thinking malware was removed when in fact it was ignored,. Avira had a relatively low impact on system performance, coming in with the second smallest impact on two of my tests. But a default setting in its spam filter slowed e-mail downloading. I also have a problem with the suite's needlessly complex user interaction. I'm hoping for a complete makeover before the next version.
2. G data
G DATA AntiVirus 2009 (formerly AntiVirusKit) is a simple and effective antivirus solution. It’s a basic and easy-to-use product that actually does what it’s supposed to do: protect your computer. G DATA has been one of the best European antivirus software manufacturers for over 20 years, and continues to find new users worldwide with their simple and valuable security software. AntiVirus 2009 from G DATA is no exception, delivering new innovations that make virus protection software straightforward without sacrificing security.
3. ESET Smart Security 4.0
ESET Smart Security 4.0 keeps its performance impact low by including only the most essential security elements: firewall, antivirus, antispyware, and spam filter. It had the least impact of any suite on browsing and came in third or better (out of 16) on all but one performance test. The independent testing labs praise its antivirus component, but the firewall's program control is turned off by default. This version includes the option to (laboriously) create a bootable rescue CD. It also integrates ESET's extremely useful SysInspector diagnostic tool.
4. Kaspersky Internet Security 2009
Kaspersky Internet Security's new user interface hides messy security details but leaves them accessible to power users. The new application-filtering feature renders the suite smart enough to make its own decisions without hassling the user. As long as you don't plan to rely on it for spam filtering or parental control, Kasperksy's suite is a good choice.
5. BitDefender Internet Security 2009
BitDefender has added a ton of new features—online backup and remote configuration, for example. It includes all the expected security elements, with decent performance from most of them. It's a reasonable choice if you're excited by those extra features.
6.TrustPort PC Security 2009
The new consumer-side suite from enterprise security vendor TrustPort PC Security 2009 doesn't offer either the tough security protection or the unobtrusive, helpful interface that consumers have come to expect. The corporate version, managed by an IT department, might work just fine, but this consumer offering doesn't belong on your desktop.
7. F-Secure Internet Security 2009
F-Secure Internet Security 2009 is easy to use, without complicated settings and extras. But installing it was a nightmare, and it took too long deleting inactive malware. The firewall is old-fashioned, and the antispam and parental-control apps are ineffective. The suite hasn't kept up with the times.
8. McAfee Total Protection 2009
McAfee's latest suite has improved malware detection, and its spam filter is also much better. But its overabundance of features hasn't changed at all; its UI is sluggish; and it saps system performance.
9. Symantec 
Continues to offer security in two flavors, Norton Internet Security 2009 and Norton 360 version 3.0. This version of Norton 360 received the same rebuild from the ground up that Norton 2009 got last year, so its impact on performance is way down. In fact it had the least system drag of any tested suite in two categories despite the fact that it added some significant new abilities across many different components. For the most part, Norton 360 does its work in the background without hassling the user—I like that. Its parental control and antispam components are still weak, but an offer to install Norton Online Family (beta) in place of the regular parental control suggests that this will improve soon. My evaluation was marred by some seriously questionable practices on the part of Symantec's chat-based tech support; Symantec is in the process of addressing this problem. Nonetheless, we chose to award the security suite an Editors' Choice based on the merits of the software itself, because it's an otherwise excellent product.
10. ZoneAlarm Extreme Security
For a year now, Check Point Software has offered two very different types of protection: ZoneAlarm Internet Security 2009 and ZoneAlarm ForceField. With the new ZoneAlarm Extreme Security, Check Point combined the two into one comprehensive security package that includes the tough firewall, accurate spam filter, and unusual identity protection features from ZoneAlarm 2009. To that solid base it adds ForceField's unusual virtualization-based malware protection, and ices the cake with its backup and tune-up capabilities. That full-scale feature set puts ZoneAlarm Extreme in direct competition with Norton 360, and it generally fares well by comparison—except in performance. ZoneAlarm Extreme put a bit less drag on test systems than ZoneAlarm 2009 did, but quite a bit more than Norton 360. Even so, it's an equally good choice for comprehensive protection. It shares Editors' Choice honors with Norton 360 and Norton 2009.
Give us your views on what antivirus your using and how good is it.
