The ETS4 is not released on Windows 10.

  • The ETS4 setup for an initial installation is not released for Windows 10. ETS4 uses SQL 2008 server component from Microsoft, Microsoft quits the support of SQL Server 2008 on Windows 10, see Link
  • Based on the subject above we also cannot release the ETS4 when updating from W7/W8.1 to W10 and give no support for ETS4+Windows 10