it works already, but now is just the englisch version
[moved from Downloading, Installing, Setting Up to InDesign]
It's not possible with old software like that.
You need to update to Creative Cloud versions of InDesign to be able to change languages.
It probably wont's work, but see http://indesignsecrets.com/change-indesigns-ui-language-with-free-app.php
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