MoP Client Not Opening

[Kyllanai]

I just downloaded the MoP Client and when I attempt to open it, it pops up with an error saying this:

"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 downloaded the WOLTK client with the new models beforehand and it works fine. Any suggestions?

[skullatbash]

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