Free antivirus are applications highly demanded by users. Everyone knows the traditional vulnerability of Windows to viruses, which does not happen with other operating systems such as GNU / Linux or Mac, but this has not prevented Windows from being installed on 90% of computers. This has generated one of the most important sectors of software, since every Windows user knows that he must install an antivirus on his computer, with free antivirus being preferred by users.
Need for antivirus
Any computer system networked or receiving external files is exposed to malicious programs, called malware. The term malware includes viruses, worms, Trojans, backdoors, rootkits, spyware, intrusive adware, crimeware, and other malicious and undesirable software. But it is very common to use the term computer virus to refer to all types of malware, including true viruses.
To combat this problem there are various security methods and approaches, which involve properly planning issues related to software, network configuration, operating system, firewall, training, applications, etc. But without a doubt the most used security method, at least among Windows users, is the installation of antivirus, usually free, which are really anti-malware since they detect all kinds of infections, although they are still called antivirus for a marketing reason.
Free antivirus
Free antiviruses are simplified versions of paid antiviruses that aim to serve as a platform for the manufacturer's commercial products. Currently they are characterized by offering practically the same benefits and features as the commercial paid versions, offering solid protection at zero cost, so they are very suitable for most home users and are highly recommended.
Free antiviruses are widespread among consumers and have very favorable opinions, the general perception is that they are good and reliable products, enjoying a market share of 42%.
Antivirus issues
Antivirus has always been a software subject to controversy, to which various problems are attributed:
Many times it does not meet the expectations of efficiency, not only the free ones, which are assumed a priori that they will not have all the benefits, but also the paid versions. It is one of the programs that consumes more memory and overloads the processor, slowing down the system. Another adverse effect is false positives, that is, notifying the user of false security incidents, either by mistake or as a strategy to give the impression of security. On a popular level, users have always been wary of antivirus manufacturers, suspecting that they themselves manufacture viruses to do business or that free antiviruses are deliberately ineffective in forcing us to acquire the paid version.Top Free Antivirus
Let's look at some of the main free antivirus:
AVG Free.Avast Free.Avira Free.BitDefender Free.ClamWin (ClamAV).Source: Free Antivirus
——-Communicado published in Notes of Purchase and Sale and Services

