Can't run the game, pandaria

Hello, i have some trouble with running the game. I download from the seit, i set the realmlist but nothing happen. After dobble cliking the icon WOW this was appear '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' . Can you help me and tell me what is the problem and how to solve it. Thank you for your coaboration

Greetings

Right click on folder (wow.exe), properties, then general, read-only by attributes, deactivate this field.

Then right click on folder wow.exe, activate as administrator

(english isn't my main language, it could be a bit different)

Regards