I downloaded and installed the Intel Matrix Storage Manager and was very annoyed when the console showed up in Swedish...?!?
Yes, I did select the english download.
Problem is that too many programmers only look at the "location" of the computer and totally ignores the installed system language. The normal, decent thing to do is to ask what language I would like to use.
I am from Finland, live in Sweden, use all my computers and programs in English - I don't want anything installed in Kroatian, just because I happen to be travelling ...
Use system language as the default, or do the right thing and ASK !