Clock, Language and Region -> Language. кнопку Download and install language pack.
Run the following command to add the language pack: windows server 2016 language pack pt-br download
PowerShell is the most efficient method for Server editions. Clock, Language and Region -> Language
Once you have the lp.cab for pt-BR:
– You must be logged in as an administrator to install language packs. windows server 2016 language pack pt-br download