Identify installed languages
In the registry, you can view a list of languages installed for the Office 2010 either during the initial installation or during a separate installation of a language pack.
Although all applications in the Office 2010 use a shared set of registry data to determine their UI language, they do not necessarily all appear in the same UI language. Applications in Office 2010 usually appear with the UI language indicated in the UILanguage value of this registry key. But there are circumstances where this might not be the case. For example, some deployments might have Microsoft Word 2010 and Microsoft Excel 2010 installed in French, but another Office 2010 application installed in a different language. In this case, the other application will look at the UIFallback list in this registry key, and use the first language that works with its installed configuration.
To identify installed languages
Open the registry.
Expand the registry key HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages.
The LCID for the language is displayed. To identify the language, see Language identifiers and OptionState Id values in Office 2010.
To view the UI language, view the following registry key values and refer to Language identifiers and OptionState Id values in Office 2010.
HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\HelpLanguage
HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\UILanguage
To view the fallback languages, view the registry key value for HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\UIFallback. To identify the language, see Language identifiers and OptionState Id values in Office 2010.
