Use Anti-Virus Software
A computer virus is a program designed to spread itself by first infecting executable files or the system areas of hard and floppy disks and then making copies of itself. Viruses usually operate without the knowledge or desire of the computer user. A virus can result in lost data or require costly repairs to your system. A virus can also spread from your computer to infect other computers.
You can avoid these risks by installing and using anti-virus software. Anti-virus software scans your computer and your incoming email for viruses, and then deletes the viruses. Many new viruses are discovered everyday. To make sure your software offers the highest level of protection, you must update your anti-virus software regularly. Most commercial anti-virus software include a feature which allows you to download updates automatically when you are on the Internet.
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Detects and removes computer viruses.
Hardware or software that secures computer files by blocking unauthorized access.