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  1. Windows Security: Defender Antivirus, SmartScreen, and More

    Protect your privacy, identity, and devices with Windows Security. Explore Windows 11 security features like Microsoft Defender Antivirus that help keep you and your PC safe.

  2. Windows 11 security book - Operating System security

    Nov 18, 2025 · Operating System security chapter.Operating systems face a wide range of security threats, including malware, exploits, unauthorized access, and privilege escalation. Windows 11 is …

  3. Windows security documentation | Microsoft Learn

    Windows is designed with zero-trust principles at its core, offering powerful security from chip to cloud. As organizations embrace hybrid work environments, the need for robust security solutions becomes …

  4. Windows Security Tips | Microsoft Windows

    Explore Windows 11 security features and tips. Learn more about security features like Windows Backup, Windows Hello, passkeys, and more on your PC.

  5. Windows Security | Microsoft Learn

    Apr 15, 2025 · Note Windows Security is a client interface on Windows 10, version 1703 and later. It isn't the Microsoft Defender Security Center web portal console that is used to review and manage …

  6. Stay Protected With the Windows Security App - Microsoft Support

    The Windows Security app is a comprehensive security solution integrated into Windows, designed to protect your device and data from various threats. It includes features such as Microsoft Defender …

  7. Virus and Threat Protection in the Windows Security App

    Learn how to use virus and threat protection options in Windows Security to scan your device for threats and view the results.

  8. Windows 11 security book - Windows security book introduction

    Nov 18, 2025 · Windows 11 enables you to focus on your work, not your security settings. Hardware and software work together to shrink the attack surface, protect system integrity, and shield valuable …

  9. Secure Boot and Trusted Boot | Microsoft Learn

    Aug 18, 2025 · The first step in protecting the operating system is to ensure that it boots securely after the initial hardware and firmware boot sequences safely finish their early boot sequences. Secure …

  10. Help protect my device with Windows Security - Microsoft Support

    If you have Windows 10, you’ll get the latest antivirus protection with Windows Security. When you start up Windows 10 for the first time, Windows Security is on and actively helping to protect your PC by …