Free virus scan and removal 

Is your computer acting weird? Is it getting slower? Free scan now. If your computer is slowing down or crashing, scan it free. Are you interested in the free virus scan and removal? In the year 2001, there were losses worth $13 billion because of virus attacks. This increase to roughly $ 25 billion in 2002. Then again in year 2003, it increased to $55 billion.

Globally the virus attacks are increasing and computer security is becoming a biggest concern for average computer user. Just see this trend. Don’t allow this to happen to your computer. Again we have noticed that in year 2004, again there is rise in computer attacks and damages caused by the viruses.

Email spam, viruses and adware/spyware are creating havoc on your computer. Viruses are getting very smart; they easily enter the computer network and spread quickly on the total computer network. Now the new viruses activate four to five different activities on your computer.This is a clear trend. You have to take the best possible computer security measures, which will ultimately protect your valuable data. We will be discussing about different types of computer viruses and how to stop them attacking your computer.

Let us first understand what is the computer virus? 

A computer virus is small program written by hackers to infect and attack the computer files. Computer virus infects the healthy computer files and gets replicated on network computers. If someone sends mail from virus-affected computer, new healthy computer gets affected whenever someone opens the e-mail attachment on the healthy computer.

Also if someone copies any file from affected computer from healthy computer, virus spreads on healthy computer. New smart viruses activate the e-mail program like outlook express, copy the address book and send dummy mails with the infected file attachments. This action results in to new computers getting infected by virus. These are some the techniques used by the virus developers to spread the infection.

Viruses first infect your system then they attack it. Old viruses used wait for trigger to damage the computer files. The trigger can be anything like a specific event, or some specific time. Now smart new viruses activate trigger on their own. There are different types of viruses.

Types of viruses

· Boot Sector Viruses
· File Infector Viruses
· Program Infector Viruses
· Macro Viruses
· Multipartite Viruses
· Worms
· Trojan Horses
· Email viruses

Of these boot sector viruses damages the boot sector of your computer. Boot sector information is what the computer requires whenever it boots. Once boot sector is damaged, this virus can damage whole hard drive, which can lead to total data loss.File infected viruses enter through the floppy or CD. They can enter through Internet download or the e-mail file attachment.

Macros or small programs specially used in word or excel to do calculations or to carry out some sequential tasks. These are dangerous, as they are platform independent. That is macro virus can work on windows pc, Mac computers or Linux computer. Hence they can get multiplied fast.

Worms generally replicate through the network and try to consume your system resource. It will occupy your memory and slow down your computer.

Trojan horses are programs, which create back door entry for the intruders or hackers, which in turn will control your computer.

There is new virus every day with new technique. We have just discussed the brad varieties. However it is most important to protect your computer data in case of virus attack.

How to protect the computer data from virus attack? 

There are various antivirus programs available in the market. Norton, Mcafee are the leaders in the antivirus software. But now there are some free virus scan and removal programs, which you can use, and if you like, go for the purchase.

The Shield 2004 Professional is very good antivirus program which we recommend. It provides essential protection from viruses, hackers, and privacy threats. It protects you against both viruses and hackers by providing ongoing support and updates. It uses sophisticated Hauri technology. In case of new virus, they give the solution with in 3 – 5 hours. You can also schedule it weekly updation and a complete computer scan. It also blocks the pop up screens.

Use The Shield 2004 Professional antivirus to save your PC.

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