MOST EFFECTIVE FREE ANTIVIRUS
Today we will try to answer at these questions to looking for the most effective 2011 free antivirus :
- What is the most powerful antivirus ?
- Which antivirus lighter ?
- Which is the most effective antivirus ?
Let us first to see if there is actually a virus better than another.
The majority of antivirus present in circulation today uses
heuristic algorithms, ie algorithms that, in an almost intuitive, trying to discover if, in a certain file or process, may hide some
malicious activity. To understand how works an algorithm, we think at
keylogger, spy little program that, once installed on a
computer, without your knowledge, store in a text file, everything you write on keyboard. If, for example, you enter username and password for
online banking accounts, will be found, in the text file, these data. Once hacker enter into possession of this data is trouble for the user. Well, new antivirus, more advanced, recognize this type of process and warn us of their presence.
What is the most powerful antivirus ?
So, to answer the first question, antivirus more powerful is than that, not only recognizes
viruses, malware, backdoors, etc..., already popular, but antivirus discover new threats by analyzing the processes (
heuristic algorithms).
Which antivirus lighter ?
In reality this is a not correct question, because when we talk about
light antivirus is obvious that we refer to the amount of
RAM that uses and
CPU resources. It's clear that, to have a recent version of
NORTON or
ESET NOD32, installed on a Pentium IV, leads us to say that none of these 2 virus is light. Antivirus application, usually at startup, active
scanning process in background, a updates control process for the database and the program and perhaps some other process that depends on each individual antivirus. For example, there are some who
scan in real time the links on a webpage that we open.
All
good and effective antivirus exploit the memory needed for their activities. More powerful processor and more
RAM we have, less we feel its weight. On a
Core 2 Duo computer,
I3, I5, I7 4-6 Gig of
RAM will never feel the heaviness of a antivirus. Obviously when we make a full scan, memory usage increases. But then, we can have 4-6 G. of
RAM but have dozens of processes in place and then the problem is not in the lightness or heaviness of antivirus.
Which is the most effective antivirus ?
What there is not even caught a virus, what it feels risky opening a web page or an executable program. But really there is the virus most effectively ? I think its not just for the heuristic system in real time above described. In fact, hundreds and hundreds of viruses are created and placed on the network every day and only an alert to these centers of any anti-virus software companies can afford to create an "antidote" to enlarge the database and computer viruses that then we update. Here the importance of doing the update of the database every day.
But since you have come here hoping to find an answer to your research and that is an effective antivirus light and, of course, free for home use, I will tell you a post where I describe effectively the most popular antivirus 4, effective, lightweight and freeware for 2011 :
You'll notice that each of the described antivirus has its characteristics and the fact they are free do not to deceive you, as they are actually very effective in their task of eradicating viruses.
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