Wednesday, May 11, 2011

Install Antivirus to Make PC Secure

In today's scenario, security of your computer system from intruders has become a difficult task. Intruders can access your important data and may harm your computer system. Your computer system becomes more vulnerable to malicious programs in case an updated antivirus is not installed on it. The reason behind this is the fact that any malicious program like virus, worm can enter into your system from many ways.

Malicious programs get installed on your computer system when you browse infected websites on the internet, when you download any infected software, when you open an infected e-mail message and so. If you want to protect your computer system from these malicious programs, then you have to install updated antivirus software on your computer system.
Why you should install antivirus?

Antivirus software offers computer security and protection from malicious programs like virus, worm, Trojan horse and other harmful things. The role of an antivirus is to check all the files for presence of viruses or any malicious program. In case it detects any viruses, it will suggest suitable action to remove them from your computers.

After installation of antivirus software, you should update it whenever anew update is available. If you have the latest antivirus program installed in your PC you will be able to identify newly discovered viruses and security threats. You should select an antivirus program depending upon your usage of computer and Internet.

If you are downloading any antivirus software from Internet, then you should investigate about the source of antivirus. In case the source is not legitimate you might end up installing some viruses along with the software causing harm for the health of your computer.

Antivirus software make use of many methods for identifying viruses. Some of the most common methods are signature based detection, heuristic based detection, and many more. In the signature based detection, antivirus software compares the content of files with virus signature. Heuristic based approach is used to identify unknown viruses.



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