What Is a Computer Virus? A computer virus is a program. Like other programs, it’s defined by what it does, and the big thing a virus does is replicate itself.

Like other programs, it’s defined by what it does, and the big thing a virus does is replicate itself. The virus exists as a collection of computer instructions attached to another program ...

Like other programs, it’s defined by what it does, and the big thing a virus does is replicate itself. The virus exists as a collection of computer instructions attached to another program ...

How to effectively remove malware or a virus from your computer with these essential steps to restore your system's security and performance.

In most cases, a factory reset should get rid of any viruses or malware on your computer. However it may not be effective for viruses like rootkits.

Even if you're cautious, there's always a chance that a virus could sneak onto your PC. Sure, Windows does have built-in security to block malware, but all it takes is one wrong click.