8.1: Antivirus Windows

Windows 8.1 includes (formerly Windows Defender) as its default protection.

Despite the OS being out of support, Microsoft Defender often continues to receive security intelligence updates for a period, though this is not a permanent guarantee. antivirus windows 8.1

Third-party suites often offer more proactive defense layers—like behavior monitoring and web protection—that can stop threats even if they exploit a Windows vulnerability. www.microsoft.com Windows 8