Download Windows 10 2004 Enterprise ISO
1. Download Creation Tool from below
https://www.microsoft.com/zh-tw/software-download/windows10
21H1 creation tools
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjt9_Squp7zAhXwFqYKHZWaA18QFnoECAoQAQ&url=https%3A%2F%2Fgo.microsoft.com%2Ffwlink%2F%3FLinkId%3D691209&usg=AOvVaw06nldsPRbESrbF5n0gT-b1
2. search->cmd.exe -> run as administrator
cd C:\Users\AccountName\Downloads
MediaCreationTool2004.exe /Eula Accept /Retail /MediaArch x64 /MediaLangCode zh-TW /MediaEdition Enterprise
3. Enter Enterprise key KMS from below
https://docs.microsoft.com/en-us/windows-server/get-started/kmsclientkeys
4. Choose Create Installation Media
5. Language code option(MediaLangCode) Link
https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/available-language-packs-for-windows
References
https://winaero.com/blog/download-windows-10-enterprise-iso-with-media-creation-tool/
Windows Known Issues List
https://docs.microsoft.com/en-us/windows/release-information/status-windows-10-1909#400msgdesc