video setting in wrath of the lich king expansion

hi guys
every time im close and re enter the game the vido setting gets reset (resolution) and ...
its like opening the game for the first time! cinematics and terms of service are showed again.
im using win10, and the game is added to my graphic card (nvdia)
can u help me plzzzzzzzzzzzz

Follow these steps:
1) Restart your PC
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"