When there is a virus in the computer and how to remove it?

One of the main reasons for the incorrect operation of a personal computer can be a virus in your computer. There are many possible ways of infection. A similar situation with malicious programs, the number of which grows daily in a geometric progression. Not always the anti-virus databases are updated quickly, and this can lead to negative consequences. As a result, your personal computer may be affected by malware, which is almost impossible to predict.

Symptoms

The main sign that the virus is in the computer is the appearance of some deviations in the work. This can be the appearance of windows that were not called by the user, and a noticeable decrease in performance, and attempts to unauthorized access to the network, and the unintelligible launch of applications in the shadow mode. This is not a complete list of signs that may indicate the appearance of a malicious program on the system unit. At the slightest suspicion that such software is on the PC, you need to urgently take a set of measures that will help diagnose the cause of these problems.

Firewall

Experienced users recommend installing a firewall, whose name in English sounds like a Firewall. It allows you to block the attempt of unauthorized access to your information. Indirectly this will neutralize the virus, which could get here. Ideally, this program should block the infection of the PC with this dangerous software. An example is the standard Windows firewall. However, often its capabilities are not enough to prevent the virus in the computer can not be. Therefore, in most cases, install specialized software, which has a higher level of functionality.

Antivirus

Also, to ensure maximum security, it is recommended that you use an antivirus. Its presence allows to prevent infection of the machine. Even if the malware was on your system unit, the antivirus will cure it. In most cases, it is sufficient that this program works in an active mode. With it, you can solve the problem of how to clean the computer of viruses. To do this, it is enough to run a compulsory scan of the computer for the presence of various kinds of threats. This will also allow you to complete the elimination of malicious programs.

Utilities

If the antivirus has worked, and the suspicion of the virus remains, you can resort to the help of specialized utilities. This is one of the ways to check the computer for viruses. To do this, just download a similar program from the Internet and run it on the computer. Before downloading it is recommended to check the version of the utility. It should be the latest, and the antivirus database - the most recent. These two conditions are the key to success. Before this, it is mandatory to disable forced antivirus. The work of two products of this class on the device can lead to unpredictable consequences.

Conclusion

If there were suspicions of the virus in the computer, and after the manipulations did not get the desired result, it makes sense to reinstall the operating system (perhaps the problem is in it). It is also possible to have a hardware failure. In this case, it is necessary to conduct a thorough diagnosis of the system unit and try to identify the cause of the failure.