Microsoft Defender isn't bad, but it's not enough to fully protect your PC. You don't have to pay extra, though—just use one of the top free antivirus apps we've tested.

Realizing that your computer is infected with a virus can be a heart-stopping moment, but there's no need to panic. Viruses or other malware can have a devastating effect on your PC, slowing its ...

Antivirus software is necessary to install on a computer as it offers protection against several threats that can harm a computer. Windows 11/10 computers come with a built-in free antivirus software, ...

Windows Security is built-in to Windows 10 and includes an antivirus program called Microsoft Defender Antivirus. If you have another antivirus app installed and turned on, Microsoft Defender ...

The word 'virus' gets tossed around a lot. Here's what actually counts, what to watch for, and how to stay two clicks ahead A computer virus is a type of program that, much like a regular virus, ...

A computer virus is a type of malware that can replicate itself on your computer and spread to other devices. You might be infected with a virus if your computer suddenly starts running more slowly, ...