WoW-Mania

Hi. I have two questions. First: I copied WoW from another computer in two cases (EnGB and EnUS), which I later pasted to my computer. Unfortunately you cannot change the Realmlist. I get an error: "I need to be in control of my computer and I don't have permissions." Is something wrong? What should I do? Second: What is the difference between EnGB and EnUS? thank you for any help.

It's best to download the entire game from the site and you won't have any problems.

EnGB (English - Europe):
-Used for players in Europe.
-Defaults to European realms.
-The language is English, but it may include regional date/time formats and spellings (e.g., "colour" instead of "color").slope
EnUS (English - United States):
-Used for players in the Americas and Oceania.
-Defaults to US-based realms.
-American English conventions are used.