Remove "Read Only" is not working

Hello everyone!

So, lately I have been having an issue where when I remove the "read only" option from the properties of the folder that holds wow (So it doesn't forget the graphic settings I put) it just.... doesn't work. Like, I log in, I place my graphic settings to the ones I want, I play for a while and I log off. Then I go and check if the "Read Only" thing is on again so I can uncheck it. And it worked for about a week or so (I've been in this server for no more than three weeks). Now? It just doesn't work. IT doesn't matter what I do, the game keeps restarting the settings every time I open it.

Does someone know how can I fix this? Or has this happenned to someone else?