A computer virus is a type of malware that, once installed on a computer, can replicate itself and spread to other computers. Viruses can cause a range of problems on infected computers, from reducing performance to damaging or deleting files.

Viruses are typically spread through email attachments, infected websites, or shared files. They can also be spread through infected USB drives, or through the use of infected software or applications.

Once a computer is infected with a virus, the virus can do a variety of things, depending on its type and function. It may delete files, format the hard drive, …