Error al instalar Content Server

[pirri]

Hola

Me estoy peleando con este error.

An error occurred while processing option SAP NetWeaver 7.0 including Enhancement Package 2 > Standalone Engines > Content Server > Content Server and / or Cache Server( Last error reported by the step: Account user="NETWORK SERVICE" does not exist.). You can now:
Choose Retry to repeat the current step.
Choose Log Files to get more information about the error.
Stop the option and continue later.
Log files are written to C:\Program Files/sapinst_instdir/NW702/STANDALONE/CONTENTSERVER/CS640.

Intento instalarlo en un windows 2012 R2 Standard, software Provisioning 1.0, content server 6.5 50127120_2.

Pero no hay manera ¿sabeis que puede ocurrir?

Un saludo y gracias

[pirri]

Me respondo ... "Only English international versions of Windows are supported.". SAP Note 362379

Un saludo.