Everytime I finish downloading the game (Mists of Pandaria 5.4.8) all the files look like they are there like any other wow download i've done. So i launch the application and give it a few minutes to do the pre-installation it always does in the top left corner of my desktop. Everytime it finishes i get this message "Data/enGB/wow-update-en18273.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: https://battle.net/support/article/6910"
Obviously I've tried running the game in administrator mode and still this message appears. Please help. how do i fix this issue?