G DATA Antivirus, formerly AntiVirusKit, is a simple and effective antivirus solution. It doesn't include many perks, but does include the basics as well as a couple extras that have come to be expected in the antivirus market. Overall, it is an easy to use product that will keep your computer protected.

Panda Antivirus 2008 is easy to install, setup and there are fewer options to confuse the user. The software has a clean consistent appearance throughout the different screens that looks great and makes sense.

When you open AVAST 4 you'll find two different interfaces-one for the average user and one that is for the more advanced user. The simple interface has the look and feel similar to that of DVD player software. It is unfortunately difficult to use and navigate. The options are not labeled with the exception of a pop-up description when you hover over a button. The enhanced interface provides plenty of options to customize the program to fit your needs, however it also suffers from some simple tags for the buttons.

F-Prot for Windows is easy to install and use. This antivirus program has a nice interface although it would be better if the options were available from the Taskbar instead of from the Start Menu or desktop. All of the options are straightforward and practical. Some of these options include right-click, on-demand, on-access and scheduled scanning.

One of PC Tools strengths is it makes a complicated process simple for the average user. This company has a good registry repair program as well as an anti-spyware program. Both have incorporated the same type of interface, which is great for the average user. The program has some great update features offering both automatic and manual updates, but overall this software doesn't offer as many features as the top-ranked products.