1) Install the OS in the primary language
2) Copy the language pack you want (pay attention about architecture) from: Language Pack (ссылка нерабочая)
3) Copy the lp_xxxxxxxx.cab (where xxxxxxx are numbers and letters) in C:\Users\Public\ folder.
4) Rename lp_xxxxxxxx.cab into lp.cab
5) Run as admin the cmd prompt
6) Type: DISM /Online /Add-Package /PackagePath:C:\Users\Public\lp.cab
7) Wait until the end of the installation
8) Reboot
9) Enjoy
DISM /Online /Add-Package /PackagePath:C:\ru.cab
Deployment Image Servicing and Management tool
Version: 10.0.17763.1
Image Version: 10.0.17763.195
Processing 1 of 1 - Adding package Microsoft-Windows-Client-LanguagePack-Package~31bf3856ad364e35~x86~ru-RU~10.0.17134.1
[==========================100.0%==========================]
Error: 0x800f081e
The specified package is not applicable to this image.
Официального пути нет что ли?