Computer viruses: description, prevention, and recovery

What is a laptop virus?
A bug may be a little software program that spreads from one laptop to a different laptop which interferes with laptop operation. A bug might corrupt or delete knowledge on a laptop, use an e-mail program to unfold the virus to alternative computers, or perhaps delete everything on the arduous disk.

Computer viruses are most simply unfold by attachments in e-mail messages or by instant messaging messages. Therefore, you want to never open an e-mail attachment unless you recognize who sent the message or unless you're expecting the e-mail attachment. laptop viruses may be disguised as attachments of funny pictures, greeting cards, or audio and video files. laptop viruses conjointly unfold by using downloads on the web. laptop viruses may be hidden in pirated software or in alternative files or programs that you simply might download.