Hi, I´m new here, and i got this problem

Recently, I downloaded wow from here(mists of pandaria), and this message pop up when i run the game as administrator from wow.exe:

""Data/enGB/wow-update-enGB-18273.MPQ: World of Warcraft can’t make a required change to an archive file. Be sure you have write permission for the World of Warcraft folder or try running the game in administrator mode. For more information, see..."" .

what i can do :/, pls help

I was able to solve the problem by myself lol, i did some digging and i found another post about this same problem, http://forum.warmane.com/showthread.php?t=319194 , now i´m excited for play..