About Computer Virus

     Let's start from the beginning - in order to better understand what AtnivirusSoftware is, of course, we have to know what is a virus.

     First of all I would like to mention that the word "virus" as it is called is incorrect. In fact, it's Mmalware (Malicious Software - malicious software) as it is officially called, includes all kinds of virus programs.

     Some start-up customers, the phrase - "there is virus in your computer" of fear and beats you to the first solution, what happens to the chapter, is to reinstall the operating system. In fact, the dismissal of the most extreme way, if the system is damaged, no other way. Even so, a good anti-virus (licensed) with the help of the most struggle with successfully carried out.  

     Virus - a Latin word meaning poison, a computer, there are still millions of virus, of course, they are intentionally created, and its nature is tvimartvad viruses, destructive programs, and includes three primary areas:

• Blockage of computer work; 
• Decline free space in HDD; 
• Change or destruction of data. 

     Viruses can be divided into three types:

1.    File viruses - in a cost separate folders, move and infect other programs that are running in RAM. Also penetrate into the hard drive, and while the data size does not change, reducing the size of the entire disk (of course, not a decrease, it shows the system disks overcrowding, virus removal, this problem will be resolved). They have the ability to hide well, so struggle with this type of virus is not so easy.  
2.   Bootable sector viruses - These viruses are created sector bootable disk, MBR-'s damage, mainly the so-called trafficking crimes, they spread with "Flash Cards" and acting in a boot. They can penetrate the hard disk MBR-in, edit the code and the system will not load crossing. Antiviruses are easier to cope with.
3. FAT / NTFS viruses - These viruses have breached the separate programs, they stick programs that are clustered together, and penetrate into the hard drive and file system damage, resulting in a program called difficult, or even longer runs them.

     In addition to viruses, there are various destructive programs, including Trojans, which are mostly spread with e-mail. FAT/NTFS-  box of trafficking crimes and the damage. Logic bombs are created for destroy data, worms that penetrate into the operational memory and multiplied, or create their own copies, fill RAM, resulting in a longer stay in the system memory and hangs.
    The main source for the spread of viruses from the internet, downloaded material often comes bundled with a virus and then according to the rules described above, the harm to our computer. Upon entering the site, as well as some aavadebs our computer.