Antivirus apps protect your PC's personal information, data, bank accounts, and other sensitive information. We've tested ...

Discover the best antivirus programs for computers that keep you protected without slowing you down. Best Antivirus Software ...

What is antivirus software and do you still need it in 2026?

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, ...

Add Yahoo as a preferred source to see more of our stories on Google. Q: It is my understanding that Windows Defender Antivirus gives Windows users the same basic protections that you get from other ...

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, ...

A new computer virus has started spreading worldwide, but antivirus experts predict that the program won't become an epidemic. Dubbed W32/Sobig, the mass-mailing worm has claimed the No. 2 slot on ...

Computer viruses can wreak havoc on your computer by damaging files, stealing data and making your system unusable. To prevent virus infection, keep an updated copy of an antivirus program running in ...

Adware and potentially unwanted programs (PUPs) might not seem like viruses to some people, but they can wreak havoc and cause major annoyances. It’s like comparing terriers to guard dogs: A ...

A few months ago I declared: "It's time to toss out your (desktop) antivirus software!" As far as I was concerned, running desktop antivirus software was a liability in and of itself because "Running ...

What’s the best antivirus software? It’s a gross misconception that only Windows-based computers can get a virus or be infected with malware. However, most infections are on computers using ...

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.