The most reliable way to create installation media. You can download it directly from the Microsoft Software Download page .

If you are on an older version (2004 or later), you can trigger the update via Settings > Update & Security > Windows Update . Key Features in 21H2 WPA3 H2E Support: Enhanced security for wireless networks.

Simplified deployment models for passwordless login.

Improved performance for Windows Subsystem for Linux (WSL) and Azure IoT Edge for Linux on Windows (EFLOW). Support Lifecycle

Windows 10 version 21H2 (November 2021 Update) was a significant feature release, primarily focused on security and productivity enhancements. Although Microsoft now prioritizes the 22H2 version, 21H2 remains available for certain enterprise and LTSC editions. Official Download Options