If Windows Security shows Unknown status in Windows 11, this post may help you. Windows Security offers features and tools that protect your PC from threats, including viruses, malware, ransomware, ...

Are you worried that your missing Windows Defender history is hiding an infection? Windows Security’s Protection History tracks the Defender’s actions, helping you identify and remove threats easily.

Windows Defender is a capable antivirus solution built into Windows itself. Unless you’ve installed a different antivirus program on your Windows 11 or Windows 10 PC, your PC is using it right now.