[ANSWERED]Can't open WOW

[WolfofNightmare]

I recently downloaded Mist of Pandaren form the web site on my first day playing I was booted from the game at first the nothing of it I simply took a break form playing however when I went to play later on I got this error message after waiting a while for the game to load up

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

If anyone knows how i my be able to fix this that would be a huge help and thank you for reading my submission

[Borrean]

Right click on the WoW folder, properties and untick ready only box.