What is computer virus?​

Explanation:

The virus that infect the computer system by entering into the computer system through any infected file and then spreading itself across the computer system.

A computer virus is a program that can copy itself and infect a computer without the permission or knowledge of the user.

if you have a hp laptop on the top row of your keyboard there sould be a button that says prt sc , click that then wait a second then open the paint app open the clipboard and hit paste then save as a file. hope that ^-^