As a good PC user, I run security software in Windows to protect my computer from malware that may pop up as I go about my day. But what about malware that tries to launch before Windows even loads?

Malware can cripple a computer, steal personal data, and compromise security, yet protection doesn't always require paid software. By combining built-in tools, safe browsing habits, and free antivirus ...

Microsoft has invested heavily in increasing the security of Windows. The firewall, the automatically activated antivirus program, various security functions for protection against boot viruses and ...

In an email we received from Janet D., she shared her recent unsettling experience. Here’s what she described: "I received a pop-up that froze my computer and read, ‘Access to this system is blocked ...

Mike De Socio is a CNET contributor who writes about energy, personal finance, electric vehicles and climate change. He's also the author of the nonfiction book, "Morally Straight: How the Fight for ...