Windows Server Operating System | Microsoft (original) (raw)

Microsoft Ignite on-demand: Hear about the latest Windows Server developments and features.

Protect, adapt, and innovate with Windows Server

Drive productivity with seamless hybrid, multicloud, and on-premises infrastructure that adapts to business needs while helping fortify your organization’s security.

Why choose Windows Server 2025?

Protect with multilayered security

Help secure data and business-critical applications. Get modernized identity management and new safeguards against brute-force and lateral attacks.

Achieve cloud agility anywhere

Bridge on-premises and cloud-based servers and get the power of Azure delivered to your hybrid cloud environment with Azure Arc.

Optimize for future-ready infrastructure

Light up new possibilities with improved scalability, larger virtual machines, and GPU partitioning across VMs built to support AI workloads.

Windows Server 2025: Flexible, reliable infrastructure

• Help secure data in transit over trusted connections with additional file server security from Windows Server.
  
• Experience improved scale and performance in Active Directory Domain Services. Windows Server 2025 offers a new domain controller with a 32,000-page database.
  
• Hyper-V offers robust hardware-based virtualization and isolation, virtualization-based security, and advanced capabilities such as GPU partitioning and failover clustering. Windows Server VMs are more scalable than ever, with support for 240 TB of RAM and 2048 virtual processors.
  
• Deploy containers easily and efficiently with reduced container size and container base image portability.
  

• Save time with enhanced networking capabilities including:

  • Network ATC: One-click deployment of host network configuration across the cluster.
  • Network HUD: Always-on alerting and remediation of network issues can help take hours off network setup and management tasks.
    

• By connecting your on-premises Windows Servers to Azure Arc, you can subscribe to additional services that bring cloud innovations to your datacenter*. Examples include:

  • Subscribe to receive hotpatching for on-premises and multicloud Windows Servers to minimize reboots.
  • Access additional Azure Arc management services, including best practices assessment and disaster recovery.
  • Pay-as-you-go pricing option for on-premises Windows Server.
    

Get even more out of Windows Server

Windows Server: Better on Azure

Take advantage of Azure innovation while using your team’s existing skills and investments.

Azure Arc

Extend the Azure platform to your hybrid, edge, and multicloud environments.

System Center

Simplify your datacenter deployment, management, and monitoring.

Azure Local

Deploy and manage virtual machines and containers at the edge with cloud-native HCI infrastructure.

Windows Admin Center

Manage Windows Servers from anywhere at no additional cost.

Microsoft Defender for Cloud

Strengthen your security posture and help guard against cyberthreats across hybrid and multicloud environments.

Pay-as-you-go for Windows Server 2025

For short-term capacity needs, scale up with the Azure Arc-enabled pay-as-you-go option for Windows Server.

Upgrade to Windows Server 2025

Upgrading to the latest Windows Server version is quicker and easier than ever.

Empower and protect your organization

Windows Server benefits from decades of Microsoft security expertise. Learn how Microsoft helps you stay ahead of ever-evolving cyber threats.

$20 billion investment in cybersecurity over five years

8,500+ security intelligence experts in 77 countries

Microsoft recognized by analysts as leader in security

See how customers are innovating with Windows Server

“It’s a relief to be protected by Microsoft’s world-class security.”

Atsushi Shintani, Executive Officer, General Manager of the Information System Department, Hokkoku Bank

Saved through optimization

“We have access to incredibly powerful technologies with Azure. We can provision new resources in only a few hours, which used to take us more than a week, and we can get new solutions to market far faster.”

Paulo Costa, Infrastructure Monitoring and Collaboration Manager, CTT

Initial savings with Windows Server on Azure

Back to customer stories section

Get started with Windows Server

Try Windows Server 2025

Experience better hybrid integration, performance, and security with Windows Server 2025.

Sharpen your skills

Learn about the latest features and explore Windows Server training.

Join Windows Server Community

Tips, previews, and discussion on the latest Windows Server technology updates.

Find your cloud solution

Explore now to find the right solution for your industry and business goals.

1. [*]
   Additional charge applies to many services added through Azure Arc. See product pricing page for details.