N/APosted on - 01/16/2012
A unified messaging language pack is already installed for the culture
This is the error i get while trying to install a language pack
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-A Unified Messaging language pack is already installed for the culture 'fr-FR'. -The UM language pack file 'C:SupportUM,Language,PacksUMLanguagePack.fr-FR.exe' doesn't exist. -No Unified Messaging language pack(s) were installed.
A Unified Messaging Language Pack Is Already Installed For The Culture
You have to make sure that you uninstall first the fr-FR language pack that you are using. If you did not remove it, you might get the error you are getting.
If you did remove it but still gets the error, you might need to search for all kinds of files and registry entries containing the string ‘fr FR’. You need to also remove the French language code. Make sure that you also search for ‘fr FR’ as a key or value on the registry aside from data. Try to look here
HKEY_LOCAL_MACHINESOFTWAREMicrosoftExchangev8.0UnifiedMessagingRoleLanguagePacks and remove the fr FR value then try to reinstall again.