Connect through Remotedesktop on your Windows Server and open the settings.
Choose the menu "Time & Language", there the submenu "Language"
Press on "Add a language"
Search for the language of your like and be sure that its a display language.
Choose the language of your like by a mouseclick and proceed by pressing "Next", accept the installation of all additional packages
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"Display Language installation and use as windows display language" must be enabled.
Windows is now downloading the language of your decision, this can take several minutes (30-60 minutes).
After the installation of your language was successfully done, you just need to sign in again or restart your server.
