What is a computer virus?

Updated: 04/26/2017 by Computer Hope

Computer VirusA computer virus is a software program that has been intentionally created to cause a user grief, spread to other computers, or destroy data on an individual's computer. To help prevent a computer from becoming infected by a virus, software developers have developed antivirus programs that stay active on the computer helping to protect it.

Note: Many computers do not come pre-loaded with an antivirus installed and computers that may include an antivirus often expire within 90 days.