Mist Of Pandaria doesn't launch.

[LordRMV]

When I try to lounc the wow.exe I get an error. (Data/enGB/wow-update-enGB-18273.MPQ: World of Warcraft can't make required changes to an archieve file.) I tried even to launch the wow.exe in administrator mode, but didn't help.
Can someone help please.

[skullatbash]

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"