Windows Server 2025 Build 26100 by Microsoft

Windows Server 2025 (released Nov 2024) is a cloud-ready OS optimized for hybrid, AI, and security, offering massive performance gains, next-gen Active Directory, and hotpatching to reduce downtime. It features a Windows 11-style UI, Azure Arc integration by default, and improved NVMe/storage speeds.

Windows Server 2025 is Microsoft’s enterprise server platform that enables organizations to run and secure applications, services, and workloads across on-premises, hybrid, and cloud environments.

Key Features and Enhancements:

• Security: Features “flight-enabled” Active Directory for greater scalability and security, SMB over QUIC for secure file access over the internet, and stronger encryption defaults.
• Performance & Storage: Substantial improvements in flash-based storage (NVMe) IOPS and GPU partitioning, enhancing AI and machine learning workloads.
• Hybrid Cloud Integration: Stronger Azure Arc integration, allowing seamless management of on-premises servers as if they were cloud-based, including Arc-enabled hotpatching.
• Modern Management: Introduces the sudo command for Windows, improved containers, and a modernized Windows Admin Center.
• User Experience: The desktop experience mirrors Windows 11, including support for Bluetooth devices and the Windows Terminal app as default.
• Upgrade Path: Supports direct in-place upgrades from Windows Server 2012 R2 and later versions.

Whether you’re running a small business or managing enterprise infrastructure, Windows Server provides the foundation for secure, scalable, and high-performance computing that grows with your organization. Built on decades of Windows innovation, it serves as the backbone for millions of organizations worldwide, powering everything from file servers and web applications to complex enterprise workloads and AI-driven solutions.

Windows Server 2025 delivers comprehensive capabilities that help organizations modernize their infrastructure while maintaining security, performance, and reliability.

Use Windows Server 2025 for:

• Mixed environments: Unified management of Windows, Linux, and container workloads.
• Enterprise integration: Seamless integration with SQL Server, System Center, Exchange, SharePoint, Project, and existing Windows infrastructure.
• Commercial support: Enterprise-grade support with an active tech community.
• Compliance scenarios: Built-in features for regulated industries (healthcare, finance, government).
• Flexible licensing: Choose between pay-as-you-go, perpetual, or subscription-based licensing.

Windows Server 2025 builds on this foundation with new features that enhance security, performance, and cloud integration. The following sections highlight some of the key benefits and features of Windows Server.

Advanced, multi-layered security

Improved protections against ever-evolving threats, multilayered safeguards, and improved resilience.

• Advanced identity protection: Enterprise directory services (Active Directory) that provide centralized authentication, authorization, and policy management across Windows, Linux, and Mac systems.
• Virtualization-based security: Enhanced Hyper-V security with VBS enclaves and key protection for confidential computing.
• Secure networking: TLS 1.3 encryption, SMB over QUIC, and advanced micro-segmentation to prevent lateral attack spread.

Cloud agility anywhere

Get the power of Azure delivered to your edge and hybrid cloud environment with Azure Arc. Deploy with complete flexibility – in the cloud, in your datacenter, or hybrid at the edge.

• Deployment flexibility: Consistent Windows Server experience whether you deploy on-premises, hybrid, or in Azure with unified management.
• Hotpatching: Apply security updates without reboots – reducing from 12 required reboots per year to just 4 for enhanced productivity.
• Azure Arc integration: Azure Arc extends Azure’s management capabilities to your on-premises servers, giving you cloud-style governance, security policies, and monitoring without moving your data whether they’re in Azure, your datacenter, or other clouds.
• Pay-as-you-go licensing: Flexible, subscription-based pricing with Azure Arc.

High-performance, future-ready infrastructure

Leaps ahead in scalability, performance, storage, and capabilities to support AI and ML.

• AI and ML ready: GPU partitioning across VMs with live migration support and enhanced performance for AI workloads and edge inferencing.
• Massive scale: Use Hyper-V to virtualize your workloads with support for up to 240-TB RAM and 2,048 virtual processors per VM for the most demanding workloads.
• Storage optimization: Enhanced ReFS with optimized deduplication and compression for software-defined storage.

Deployment:

Windows Server 2025 ives you the flexibility to choose where your applications and data live based on your business needs. Each deployment option offers unique advantages to help power your organization’s growth and innovation. You can deploy Windows Server in the cloud, in your datacenter, or as a hybrid solution at the edge across different environments.

Key Editions and Availability:

Windows Server 2025 is available in Datacenter, Standard, and Azure Editions, providing high scalability for large-scale virtualization and enterprise applications.

Top New Features in Windows Server 2025:

• Hotpatching (Azure Arc): Enables applying security updates without rebooting the server, reducing downtime significantly.
• Next-Generation Active Directory: Offers improved performance, scalability, and security with a new database format, improved LSA lookups, and better protection against spoofing/relay attacks.
• Hybrid Cloud Integration: Stronger integration with Azure Arc for unified management of on-premises and cloud resources.
• High-Performance Networking & Storage: Includes AI-ready networking, GPU partitioning for virtual machines, and faster Flash-based storage capabilities.
• Security Advancements: Features Secure Boot by default, improved Credential Guard, and stronger SMB signing/encryption.
• Hyper-V Enhancements: Supports massive virtual machines with up to 240 TB of RAM and 2048 virtual processors.
• Modernization: Includes built-in OpenSSH server, Windows Terminal by default, and improved container portability. 

Homepage – https://www.microsoft.com/en-us/windows-server

Minimum System Requirements:

• Processor: 1.4 GHz 64-bit processor, x64-v2 compatible, supporting NX, DEP, CMPXCHG16b, LAHF/SAHF, and PrefetchW.
• RAM: 512 MB (Server Core), 2 GB (Server with Desktop Experience).
• Storage: 32 GB minimum (additional space required for volume updates and feature roles).
• Network: Ethernet adapter capable of at least 1 Gbit/s throughput.
• Firmware: UEFI 2.3.1c-based system supporting Secure Boot.
• Security: Trusted Platform Module (TPM) 2.0.

Key Considerations:

• Installation Options: “Server Core” is the minimum, while “Server with Desktop Experience” provides a full graphical user interface (GUI).
• Virtualization: Requires SLAT (Second Level Address Translation) and CPU virtualization support.
• Recommendation: For better performance, particularly for GUI installations, 4 GB or more of RAM is generally recommended.

Size: 6.39 GB

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