When deploying hundreds or thousands of machines using Microsoft Deployment Toolkit (MDT) or System Center Configuration Manager (SCCM), you can pre-load language packs into the task sequence. Adding microsoftwindowsclientlanguagepackx64enuscab ensures that every deployed machine has US English available immediately, without post-deployment downloads.
The Microsoft Windows Client Language Pack x64 en-us .cab is a language pack package for 64-bit Windows client editions that contains the English (United States) language resources in CAB (cabinet) format. Language packs include translated UI resources (menus, dialog text, help files, system messages) and allow Windows to display the operating system in the specified language or to add additional language options for users. microsoftwindowsclientlanguagepackx64enuscab