Windows Server documentation

Windows Server is the platform for building an infrastructure of connected applications, networks, and web services, from the workgroup to the data center.

Get started

Get started with Windows Server

What's new

What's new in Windows Server?

Overview

Windows Admin Center

Overview

Hyper-converged infrastructure

How-To Guide

Connect to Azure hybrid services

How-To Guide

Use Windows Server Extended Security Updates

Get started

Windows Insider Program for Windows Server

Get started

Azure Automanage for Windows Server Services

Upgrade Windows Server

• Hardware requirements
• Install, upgrade, or migrate
• Upgrade and migrate roles and features in Windows Server
• Perform an in-place upgrade
• Windows Server Pay-as-you-go
• See more

Identity and access

• Active Directory Domain Services Overview
• Active Directory Federation Services (AD FS)
• Securing privileged access
• Getting started with group managed service accounts (gMSA)
• See more

Failover Clustering

• What's new in Failover Clustering
• Create a failover cluster
• Cluster-Aware Updating overview
• See more

Management

• Use Windows Admin Center to manage your environment
• OpenSSH in Windows Overview
• System Insights overview
• Performance tuning guidelines for Windows Server
• See more

Networking

• What's new in networking
• Software-defined Networking (SDN) overview
• Network controller
• See more

Remote

• Remote Desktop Services overview
• Remote Desktop clients
• Remote Desktop - Allow access to your PC
• See more

Security and assurance

• Windows Server 2025 Security Book
• Windows Authentication overview
• Secured-core server
• Credentials processes in Windows Authentication
• See more

Storage

• What's new in storage
• Disk management overview
• Understanding cluster and pool quorum
• See more

Troubleshoot

• Troubleshoot Windows Admin Center
• Troubleshoot failover clustering using Windows Error Reporting
• Troubleshoot disk management
• See more

Virtualization

• Containers on Windows overview
• Hyper-V on Windows Server
• Hyper-V Virtual Switch overview
• See more

Reference

• Windows and Windows Server PowerShell modules
• Windows built-in commands
• Develop with server technologies using the Win32 API
• Windows protocols

Windows Server 2012 R2 and Windows Server 2012 (Archive)

Archive of technical content for IT professionals administering Windows Server 2012 R2 and Windows Server 2012.

Windows Server Essentials

Technical content for IT professionals administering Windows Server Essentials, the cloud-connected first server designed for small businesses with up to 25 users and 50 devices.