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. Our team tests, rates, and ...

In 2025, most devices feature built-in antivirus software that scans files you attempt to download, blocking anything it deems suspicious. Antivirus tools also perform automated scans to remove ...

A finger pressing a key with antivirus inscription on a keyboard - Diy13/Getty Images With the ever-growing threat of malware, ransomware, and phishing scams, a solid security app is essential for any ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. Avira is a cybersecurity company known for its freemium ...

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

With the ever-growing threat of malware, ransomware, and phishing scams, a solid security app is essential for any Windows PC, even for savvy internet users. While Windows 11 comes with built-in ...