All Antivirus and filtering

The Bottom Line: Norton AntiVirus 2010 builds on the immense progress made in last year's version, maintaining a low system profile while strengthening its security framework. It's not perfect, but even Symantec's detractors should check it out.

Specs: 1 user, Complete package, 300 MHz or higher, CD-ROM, DVD drive, 300 MHz or higher

The Bottom Line: Going by older detection and removal numbers, Trend Micro AntiVirus plus AntiSpyware offers competent if basic security protection. However, so do many free competitors. This year, we recommend giving Trend Micro AntiVirus plus AntiSpyware 2010 a pass.

Specs: Complete package, Intel Pentium, Intel Pentium

The Bottom Line: Kaspersky Anti-Virus 2010 offers pricey antivirus protection. The 2009 version scored well on independent antivirus detection and removal tests, but be prepared to pay a premium for what you're getting.

Specs: 3 users, Complete package, 10

The Bottom Line: Panda Internet Security 2009 is vastly improved in speed and effectiveness over last year, but could use a little more work on specific features and technical support.

Specs: 1 PC, Subscription package, Microsoft Windows XP, Microsoft Windows Vista, Microsoft Windows XP 64-bit Edition, Microsoft Windows Vista (64-bit versions), 300 MHz Intel Pentium, 300 MHz, CD-ROM, 300 MHz Intel Pentium, 300 MHz, Windows, Internet Explorer 6.0

The Bottom Line: AntiVir Personal 8 provides more than adequate malicious-software protection, but for the price, we expected more features and polish.

Specs: Complete package, 133 MHz Intel Pentium, 133 MHz Intel Pentium

The Bottom Line: Norton AntiVirus 2009 hits all the right security notes, and its superior protection technologies might even win back some jaded anti-Symantec folks, though for some, technical support may continue to frustrate.

Specs: 1 user, Complete package, Microsoft Windows Vista Business, Microsoft Windows Vista Ultimate, Microsoft Windows Vista Home Basic, Microsoft Windows Vista Home Premium, Microsoft Windows XP Home Edition SP2, Microsoft Windows XP Professional SP2, Microsoft Windows XP Media Center Edition SP2, 300 MHz, CD-ROM, 300 MHz, Windows

The Bottom Line: While offering roughly the same features and performance as its competition, F-Secure Internet Security 2009 is about $20 too expensive.

Specs: 1 PC, Complete package, Microsoft Windows Vista Starter, Microsoft Windows XP Home Edition, Microsoft Windows XP Professional, Microsoft Windows XP Media Center Edition, Microsoft Windows Vista Business (32/64 bits), Microsoft Windows Vista Ultimate (32/64 bits), Microsoft Windows Vista Home Basic (32/64 bits), Microsoft Windows 2000 Professional SP4 or later, Microsoft Windows Vista Home Premium (32/64 bits), 600 MHz Intel Pentium or higher, 600 MHz, CD-ROM, Internet connection, 600 MHz Intel Pentium or higher, 600 MHz, Windows, Internet Explorer 5.0

The Bottom Line: You can't beat the price. For a good, basic Internet Security suite, we recommend Trend Micro Internet Security 2009.

Specs: 3 PCs, Complete package, Microsoft Windows XP Home Edition SP2, Microsoft Windows XP Professional SP2, Microsoft Windows Vista Business (32/64 bits), Microsoft Windows Vista Ultimate (32/64 bits), Microsoft Windows Vista Home Basic (32/64 bits), Microsoft Windows XP Tablet PC Edition 2005 SP2, Microsoft Windows Vista Home Premium (32/64 bits), Microsoft Windows XP Media Center Edition 2005 SP2, 350 MHz, 800 MHz, XGA monitor, 350 MHz, 800 MHz, Windows, Internet Explorer 7, Mozilla Firefox 2.0 or later, Internet Explorer 6.0 SP2 or later

The Bottom Line: Kaspersky Anti-Virus 2009 provides adequate protection, but the program itself could use some work in telling the user what's going on.

Specs: 1 user, Complete package, 800 MHz Intel Pentium (Microsoft Windows XP, Microsoft Windows Vista), 800 MHz Intel Pentium (Microsoft Windows XP, Microsoft Windows Vista)

The Bottom Line: A near-perfect all-in-one solution for brand new PCs, Norton 360 v2 may be hard to install and run on legacy machines. However, don't count on Symantec's time-consuming and expensive technical support for help.

Specs: 3 PC in one household, Complete package, Microsoft Windows Vista / XP, 300 MHz, 2.0, CD-ROM, 300 MHz, Windows, Internet Explorer 6.0 or later