If your server is in a restricted environment without internet access, you must obtain the language pack files manually. How to Change Languages in Windows Server 2016
: Once the download completes, go back to the previous screen, select Português (Brasil) , and click Set as default .
If you prefer a completely localized operating system from the start, Microsoft offers a ISO in Brazilian Portuguese. This is not a language pack—it’s the full OS.
The safest and most reliable method to download the Windows Server 2016 Brazilian Portuguese language pack is via the official Microsoft Evaluation ISO or Volume Licensing channels. Installation requires DISM and a reboot. Unofficial downloads pose significant security risks and should be avoided. windows server 2016 language pack pt-br download
The language pack for Windows Server 2016 is a full OS reinstall; it is an add-on that works on top of the existing English version.
Restart-Computer -Force
If you manage IT infrastructure in Brazil or support Portuguese-speaking users, changing the display language of Windows Server 2016 to is essential. While English is the default language for most server installations, many administrators, developers, and local users prefer interacting with the OS in their native language. If your server is in a restricted environment
Run Windows Update and install all pending updates, especially the Servicing Stack Update (SSU) and the latest cumulative update. Then retry the DISM command.
This is the most direct way to get the pt-BR language pack if your server has internet access.
Restart-Computer
(Replace D:\langpacks\lp_pt-br.cab with your actual path)
There are two ways to do this: