In the Welcome to the Upgrade Wizard dialog box that displays, do one of the following to determine the language of the upgrade program:
Accept the default language en-US.
Change the default language en-US by selecting a language from the list of languages available in the ...\Languages folder on the distribution media (see Language Packs and the List of Supported Languages).
Add another language by clicking Add Additional Language, navigating to the directory containing your supported language file, selecting Gms.InstallerSetup.resources.dll at the path …\Languages\<LanguagePack Name>\GMS, and then clicking Open. NOTE 1: During upgrade, installation of hotfixes or quality updates, if you encounter any errors or warnings, for example, regarding prerequisites, extensions or post-installation steps, digital signature validation, see Consistency Check Scenarios. NOTE 2: Regardless of the language selected, the Welcome to the Upgrade Wizard dialog box and all related messages always display in en-US.
