Launcher doesn't work?!

Hey guys,

So i downloaded the MoP Server today, but while trying to open the Cliënt nothing happens. I didn't change anything important by my knowledge. i only add some addons, and changed the "reading only" options from WTF folder, so it would save my settings. WotlK Lordaron works fine. Any suggestions on how to fix this?

Follow these steps:
1) Restart your PC ( this is important)
2) close your Torrent client and move your WoW folder away from your Torrent's download destination
3) now right click on WoW folder> Properties> remove "read-only".