Computer is an integral part of your life. It stores all your accurate data and information. Just imagine your frustration if all this information will be lost due to virus attack. Viruses can easily penetrate into your system via the Internet and infect files and programs installed on your computer, so you can permanently lose your valuable data. If you do not want to face the same problem, you should protect your computer, programs and data with good anti-virus software.
If viruses are found, the antivirus removes them immediately from your system. Some antivirus programs support functions update antivirus databases and virus protection, so that your computer will be protected from new viruses, and detecting malware antivirus prevent the spread of viruses to other computers on the network.
Nowadays there are a lot of available complex antivirus programs. However, the effectiveness of anti-virus software is determined by how it is able to detect ever-changing virus threats. While antivirus software is continuously improving, viruses are also becoming more sophisticated, with each passing day an increasing number of various viruses appear. Anti-virus software that is installed on your computer often cannot recognize these newly made viruses, and therefore it is important to update regularly anti-virus database in order to protect your computer.
When the antivirus detects an infected file, program is trying to restore a file (”cure” it) or simply delete it from your computer so that it does not spread to other parts of your system. When the virus is detected the codes of file are sent to the centers to study viruses. These centers carry hollow analysis of the virus and develop new programs to detect and protect against this new virus. Then it is recorded in a database, where users can upgrade their antivirus software.
Most advanced anti-virus programs use four main methods for the detection of viruses:
- Scans;
- Checking the integrity of the system;
- Hindering or interception of the virus;
- Naive.
Scanning and interception are the most commonly used anti-virus methods. Two other methods are used by less well-known antivirus. However, the scanning process used by most antivirus software is effective only if these programs can detect viruses. This method is not useful when you come up with new viruses. Thus, the centers of virus play an important role in the fight against virus attacks.
Antivirus programs are not the effective tools for data recovery. Viruses usually damage files, and therefore the best form of protection for your data – backup your files. In the case where the file was infected with a virus, but was not damaged, the antivirus will be able to restore a file to a state where it has not yet been infected. This is achieved by removing the virus code from the file. But anti-virus programs are not effective against viruses that damage the system files. The only method that will help you to restore the damaged files – delete all the damaged files and reinstall them from backup.
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