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--- ---
title: Windows operating system security title: Windows operating system security
description: description: Securing the operating system includes system security, encryption, network security, and threat protection.
ms.reviewer: ms.reviewer:
manager: dansimp manager: dansimp
ms.author: dansimp ms.author: deniseb
ms.prod: w10 ms.prod: w10
ms.mktglfcycl: deploy ms.mktglfcycl: deploy
ms.sitesec: library ms.sitesec: library
ms.pagetype: security ms.pagetype: security
author: dansimp author: denisebmsft
--- ---
# Windows operating system security # Windows operating system security
Security and privacy depend on an operating system that guards your system and information from the moment it starts up, providing fundamental chip-to-cloud protection. Windows 11 is the most secure Windows yet with extensive security measures designed to help keep you safe. These measures include built-in advanced encryption and data protection, robust network and system security, and intelligent safeguards against ever-evolving threats. Security and privacy depend on an operating system that guards your system and information from the moment it starts up, providing fundamental chip-to-cloud protection. Windows 11 is the most secure Windows yet with extensive security measures designed to help keep you safe. These measures include built-in advanced encryption and data protection, robust network and system security, and intelligent safeguards against ever-evolving threats.
The operating system security features in Windows 11 include:
- System security
- Trusted Boot (includes Secure Boot and Measured Boot)
- Cryptography and certificate management
- Windows Security app
- Encryption and data protection
- BitLocker
- Encryption
- Network security
- Virtual Private Networks (VPNs)
- Windows Defender Firewall
- Bluetooth
- DSN security
- Windows Wi-Fi
- Transport Layer Security (TLS)
- Protection from viruses and threats
- Microsoft Defender Antivirus
- Attack surface reduction
- Tamper protection
- Network protection
- Controlled folder access
- Exploit protection
- Microsoft Defender for Endpoint