Enable Locales

You can view, enable, and disable locales from the Manage Locales page. You can search for specific locales, and list either all locales, active locales, or inactive locales.

Go to Setup and Maintenance.
Select Service from the Setup drop-down list.
Select Knowledge Management from the functional areas.
Select the Manage Knowledge Locales task.
Select the checkbox of the locale that you want to enable.

You can disable a locale by clearing the checkbox. When you disable a locale, users can't search for or browse the articles in the locale, and authors can't add or update its contents. Articles in disabled locales stay in the database, and you can re-enable a locale to make its contents available to users again. You can permanently delete a locale by deleting all the objects in the locale, then disabling it.

Note:

You can't disable the default locale.