Hi @Jörg Debus ,
> 2022-04-18 18:11:35 StartupBootstrapActivity:SSEIActivityMessage:Message: Eine erforderliche Datei konnte nicht heruntergeladen werden. Dies könnte bedeuten, dass die Version des Installers nicht länger unterstützt wird.
Which language version of the SQL server installation package did you download? German or English? Suggest you to download the SQL server installation package in the same language as your OS.
Then run the package as administrator.
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