Error

Today i downloaded MoP in the 27 gb format , but every time i press on the executable file i receive the same error : "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: https://battle.net/support/article/6910" . I tried all the options that were presented on that link but nothing,i even deleted the folder with the game and re-download all again but the problem is the same. If someone can help me solve the problem or at least give me some info about how to solve it.

1) close your Torrent client and move your MoP folder away from your Torrent's download destination
2) now right click on MoP folder> Properties> remove "read-only"

Thx for the answer,now i can play the game :)