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Anti-virus software is a software utility that detects, prevents, and removes viruses, worms, and other malware from a computer. Most anti-virus programs include an auto-update feature that permits the program to download profiles f new viruses, enabling the system to check for new threats. Antivirus programs are essential utilities for any computer but the choice of which one is very important. One AV program might find a certain virus or worm while another cannot, or vice-versa.
Anti-virus software is also known as an anti-virus program or a vaccine.
Anti-virus software searches the hard drive and external media attached to a computer for any potential viruses or worms. Broadly speaking, the two main approaches to virus detection are: