01Overview

Windows Server 2022 and 2025 are both Long-Term Servicing Channel (LTSC) releases — meaning they receive 5 years of mainstream support followed by 5 years of extended security-only support. Neither is going away soon. But they represent meaningfully different eras of Microsoft’s server strategy.

Windows Server 2022 (released August 2021) was a solid, security-focused evolution built on Windows 10. Its headlines were Secured-core Server, SMB over QUIC, and improved Azure hybrid integration. It’s proven, stable, and extremely well-supported by third-party software.

Windows Server 2025 (released November 1, 2024) is the first server OS built on the Windows 11 codebase. It’s a more substantial jump — bringing hotpatching, GPU partitioning for AI/ML workloads, NVMe over Fabrics storage, a new Active Directory functional level, and significant security hardening including the removal of NTLM in favour of Kerberos. It’s the right choice for most new deployments in 2026.

02Full Feature Comparison Table

03Security — Where 2025 Makes the Biggest Leap

Both versions are significantly more secure than Server 2019, but 2025 adds several hardening measures that 2022 simply doesn’t have.

04Performance — Storage and Network

For most VPS use cases — running applications, hosting websites, RDP remote access — the day-to-day performance difference between 2022 and 2025 is modest. The big gains in 2025 are in storage-heavy workloads and high-density virtualisation.

• NVMe over Fabrics (NVMe-oF) — Server 2025 adds native NVMe-oF support, making remote storage perform as fast as a locally attached NVMe drive. Server 2022 has no NVMe-oF support. For VPS workloads with high disk I/O (databases, video processing, large file operations), this is a significant advantage.
• NVMe IOPS — Microsoft reports up to 90% more IOPS on NVMe storage in Server 2025 vs 2022 with the same hardware. On providers like Hetzner with NVMe SSD plans, you’ll feel this in database query times and file system operations.
• SMB over QUIC — Available on all Server 2025 editions, vs Datacenter-only in 2022. Provides fast, secure file sharing over the internet without a VPN.
• Hotpatching — Server 2025 with Azure Arc allows security patches to be applied without rebooting. Server 2022 requires a reboot for every patch. This doesn’t affect raw performance but dramatically improves uptime.

05Virtualisation & Hyper-V

If you’re running Hyper-V VMs on your server (rather than using it as a guest VM), the 2025 improvements are dramatic — particularly for AI/ML and large database workloads.

• Max vCPUs per VM — Server 2025 supports up to 2,048 virtual processors per VM, up from 240 in Server 2022. Enterprise-scale workloads only, but it shows the direction of the platform.
• Max RAM per VM — Server 2025 supports up to 240 TB RAM per VM, up from 12 TB in Server 2022.
• GPU partitioning — Server 2025 introduces GPU partitioning across VMs with live migration and failover clustering. This is the key enabler for running AI/ML inference workloads on Windows Server. Server 2022 has no GPU partitioning support.
• Container improvements — Better Kubernetes integration and improved container isolation in Server 2025.

For typical VPS use (where you are the guest VM, not the host), these differences are irrelevant — your VPS provider handles the hypervisor. Both versions perform equally well as Hyper-V or KVM guest operating systems.

06UI & Day-to-Day Management

This is where Server 2025 feels most noticeably different if you’re connecting via RDP regularly.

• Windows 11-style desktop — Server 2025 uses the Windows 11 UI: centred taskbar, rounded corners, updated Start menu, refreshed Settings app and File Explorer. Server 2022 looks like Windows 10.
• Windows Terminal built-in — Server 2025 ships with Windows Terminal pre-installed, giving you a modern tabbed console for PowerShell, CMD, and WSL. Server 2022 requires manual installation.
• WinGet package manager — Server 2025 includes WinGet by default, letting you install applications from the command line like winget install vlc. Server 2022 lacks this.
• File compression in Explorer — Server 2025 lets you compress files directly from File Explorer right-click menu. Small but useful quality-of-life improvement.
• Server Manager — Same in both versions. The core management interface hasn’t changed significantly.
• Windows Admin Center — Improved in 2025 with a more intuitive interface and better Azure integration.

07Support Lifecycle — The Deciding Factor for New Deployments

If you’re deploying a fresh Windows Server in 2026, the support lifecycle alone is a compelling reason to choose Server 2025.

The bottom line: Server 2022’s mainstream support ends in October 2026 — just months away. Deploying Server 2022 now means you’re buying a product that will immediately enter maintenance mode. Server 2025 gives you a full runway of active development and feature updates through 2029.

08Which Should You Use?

The short answer for 2026: use Server 2025 for any new deployment. The only good reason to choose Server 2022 now is specific application compatibility requirements or existing infrastructure where upgrading would be disruptive.

09Frequently Asked Questions