Just got Windows 10, Need to change Language

is there anyway to get a language pack for windows 10 to change the language back to English?
I was able to manually download a language pack but I wasn't able to install it through CMD.
I haven't bought the Windows 10 pro to change it for me, but was wondering if I am able to change it manually on the current version of Win 10

Have a look at this thread in which I replied to a member who wants to change Japanese language to English.
Post #2 is how to Add language > install the selected language > set it as default > reboot.
I also posted screenshots for "before" and "after" change of display language.

Cant change language to english

See if that will help you a bit.

It doesn't work. I tried that already. It says that my current Windows does not support another language. However I saw your later post, I have the same version of Windows 10 the pictures posted on that thread

The fact that you are in Texas, USA, makes me wonder..................
What language your computer is now using ?

Chinese, I got my update when I was back in China