A virus

Through e-mail or a recording medium, a computer virus is a malicious program that you want to break into the computer.
Recently became the norm because the Internet connection, the virus that enters through the network has become a problem.
I also common case that the virus has penetrated without knowing it.
I was infected by executing the program of initial virus, the virus has recently become successful, there are many cases where the infection only a preview.
As the behavior of the virus, but some are just simply displays a message, there are many high-risk virus.
Is there any program or erase the data on the computer, and then send the password to the outside.
Anti-virus software is a program to detect and get rid of these viruses.
People who are using your computer, you can install anti-virus software is probably some sort of basic.
The reason is called because the virus infects other computers.
It's become that he would carry the perpetrators without knowing it.
Sometimes they send out the virus, such as acquaintance may enter in the e-mail, do not know it.
We would be from someone you know you have installed anti-virus software, subject to such indications.
We'll keep to purchase anti-virus software as well in order to avoid inconvenience to people.
If you do not want to spend the money, there is also a free anti-virus software.