Formerly known as Windows Defender, Microsoft Defender is an antivirus protection program that's included with Windows 10.

If you're new to the default firewall on Windows 11, here are all the basics you need to know. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. On ...

In recent years, users have repeatedly reported that “Windows Security” no longer starts. As Windows virus protection is also included here, this error should be ...