Windows Server 2022

Microsoft's previous-generation server OS, still widely deployed, with secured-core server hardware support and Azure Arc hybrid-cloud integration as its headline additions over Server 2019.

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プラットフォーム

Windows

リリース日

August 2021

サポート終了日

October 2026 (mainstream); extended support through October 2031

システム要件

1.4 GHz 64-bit CPU, 512MB RAM (2GB for Server with Desktop Experience), 32GB storage minimum.

Windows Server 2022 introduced secured-core server support (hardware-backed protection against firmware-level attacks, extending the secured-core concept from Windows 11 client PCs to servers), TLS 1.3 by default, and deeper Azure Arc integration for managing on-premises servers alongside Azure resources from one control plane. It remains extremely widely deployed in production data centers, with mainstream support running to October 2026 and extended (security-only) support out to October 2031, giving organizations still on it a long runway before Server 2025 migration becomes urgent.

リリース日、サポート期間、システム要件はMicrosoftおよびAppleの公式ライフサイクルページ（上記リンク）に基づいています — サポートポリシーは随時変更されるため、本番環境や企業での意思決定にこれらの情報を利用する前に、必ず公式ページでご確認ください。