windows 10 21h2 For version 2004, 20H2, and 21H1 devices that receive updates directly from Windows Update, devices automatically get the enablement package by installing the feature update to Windows 10, version 21H2. If a device is updating from Windows 10, version 1909 or an earlier version, this feature update enablement package cannot be manually installed..
windows 11 22h2 The Windows 10 November 2021 Update[1] (codenamed "21H2"[2]) is the twelfth major update to Windows 10 as the cumulative update to the May 2021 Update. It carries the build number 10.0.19044.
phím tắt windows Windows 10 버전 21H2 (빌드 19044, Vibranium (20H1) 기반의 마이너 업데이트) Windows 11 버전 21H2 (빌드 22000, Cobalt 기반의 Windows 11의 최초 릴리스) Windows Server 2022 (빌드 20348, Iron 기반의 Windows Server 2019 의 후속작)