This article deals with a subject that all owners of personal computers are facing: "The free antivirus is good for choice? Which antivirus to choose? I also need firewall?"

Starting with the basic: "I need the antivirus program for my computer?"
Now these days the answer to this question can only be one: "Yes, the antivirus program is essential for your computer." A few decades ago, the response could also be different because the PC was used in a limited free internet access and with very little exchange of data via floppy disk and a user expert recognized the dangerous sources.
In the XXI century has totally changed, computers are always connected to the Internet, downloading mp3s, movies, and USB proliferate. Even an experienced user can take a virus that exploits a bug in the operating system or browser without realizing it. So the answer can only be shortly.

The next question that asks the PC user is: "Can I use a free antivirus, that's same okay?"
To answer this question we have to explain that there are differences between a free antivirus and a fee:
In general, free virus are "purely" anti-virus, their only function is to identify among the files that we use the possible viruses, however the pay packages offer other features such as anti spam, spyware, malware, etc.. Furthermore, the detection rate of virus in a free version and a pay changes by about 30% more in favor of the fee, though not always happen and that's why you must choose the right anti-virus, treat the topic In the next paragraph.
So to answer the question whether to choose a free or paid version is recommended the paid version, that free can be used in an area where the computer is not used to do home banking, online shopping and there are no important data or confidential.

Once you have decided to buy an antivirus applications do not have ended, have become even more important: “What antivirus should I buy? What brand? Why are there different packages of the same version with different prices?"
First, if you choose the paid version is because you need more protection, for this reason the antivirus package that you buy must also included a firewall.
The firewall is a program that controls all traffic to and from your computer by blocking potentially dangerous one, with this program you can also decide what application on your computer can access to Internet.
As you can imagine the firewall raises considerably the level of computer security and why it is essential to its presence in the package you're going to buy.
Packages that include not only the antivirus are usually named similar to Internet Security or Security Center.
To return to the question of “what antivirus should I buy” the answer changes every year according to tests conducted by independent laboratories, on this site you can always find a ranking to date.
The test parameters are different, the differences between the first and the last categorized there are also considerable, so your choice can only be passed on first in the standings.
The "top of this league" and not "the very first" because there are at least 2 more reasons why we can make change my mind:

• First, if it is compatible with your computer and you. The antivirus and firewall programs are complex and may conflict with the hardware (rarely), the operating system (rare) or programs installed (more cases). For this reason and also because you also become familiar with the program you should always install the trial version before buying so you can test it, so he also earns a month's leave.
• The second reason may be the price, because there are packages with three licenses, with only 2 or a license, the price in this way can be amortized with a friend or more licenses become necessary if you own other PC.