Viruses can intrude into your PC by different means. The leading cause and source of most of viruses, spywares, trojan horses is internet, especially downloads and E-Mail attachments. Other sources may include Flash Drive (USB), CD or any other device you connect with your computer.
protects your computer from malicious software that could cause distruction of computer
malicious software
Malware, short for malicious software, is software designed to infiltrate a computer system without the owner's informed consent. Some computers are invaded with malware that causes damage to the computers. Malicous computer is a computer that has a malicious code and it is passing it to other computers.
"antivirus" is protective software designed to defend your computer against malicious software.
You need a certain Anti-Virus Software, that allows you to either quarantine or delete malicious software on your computer.
firewall
It is a software program which is designed to look for, prevent, and remove any malicious software code that is on your computer.
worm
To make sure Viruses and Malicious software can't attack your computer.
Install the AntiVirus software and scan your computer. The AntiVirus prevents any kind of malicious software and viruses.
Microsoft Safety Scanner software is use to detect any malicious software and program on your computer and remove them without them causing damage to your computer.
Computer viruses are man-made malicious software programs designed to infect and harm computer systems. They do not occur naturally and are created by individuals with malicious intent.