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Language Packs (lp.cab) and Windows Deployment
Download language packs -
- On the running operating system, open an elevated command-line prompt.
Type the following command to add a language pack to the operating system. - Copy the command below and run it
Source: Add and Remove Language Packs on a Running Windows Installation
Multilingual Windows Image Creation
Search for mu_windows_server_2012_r2_language_pack_x64_dvd_2710896.iso