May 10, 2024 · A computer virus is a type of malicious software program ("malware") that, when executed, replicates itself by modifying other computer programs and inserting its code. When this replication succeeds, the affected areas are then said to be "infected".

Feb 13, 2023 · If you think your computer has a virus, you should act fast to try to irradicate the malicious code. Don't panic – we've broken down what you should do into a few easy-to-understand steps. If you can read this webpage from your device, you can probably save your computer and data.

Jan 8, 2025 · A computer virus is a type of malicious software (malware) that replicates itself by attaching to another program or file on your computer. Once a virus infects your system, it can spread quickly, overwrite or modify files, and even shut down your computer.

A computer virus[1] is a type of malware that, when executed, replicates itself by modifying other computer programs and inserting its own code into those programs. [2][3] If this replication succeeds, the affected areas are then said to be "infected" with a computer virus, a metaphor derived from biological viruses. [4]

Jun 27, 2019 · In the same vein, when you understand how viruses infect computers, you can take better preventative measures to prevent viruses and identify a virus before it rages out of control. Here, we illustrate how you can recognize nine common computer viruses.

Computer viruses spread across systems, infecting programs & files with malicious code. Learn to scan for viruses (and try our free virus scanner), remove viruses, and protect your computer against future infections.

Dec 18, 2017 · A computer virus is a program or piece of code designed to damage your computer by corrupting system files, wasting resources, destroying data or otherwise being a nuisance. Viruses are unique from other forms of malware in that they are self-replicating — capable of copying themselves across files or other computers without a user's consent.

Mar 17, 2023 · What is a virus? A computer virus is a program that spreads by first infecting files or the system areas of a computer or network router's hard drive and then making copies of itself. Some viruses are harmless, others may damage data files, and some may destroy files.

May 1, 2020 · A computer virus is a type of program that attaches itself to a host with the intention of multiplying and spreading to other computers. Here's a computer virus definition, virus examples, and more.

Nov 16, 2020 · Simply put, a virus is a kind of malware that has the ability to replicate itself. Once activated, it can install itself on a computer, infecting the PC and enabling the virus to continue to...