如何在单一语言版本上更改windows10界面语言

Unfortunately, on my PC was pre installed Windows 10 Single Language (BR Portuguese) and I can't change the "display language" from BR-PT to US English because don't have any options; for that obvious reason, indeed. So, please: how can I install a new "display language" onto Windows 10 Single Language version?Unfortunately, on my PC was pre installed Windo