I was just going to install the new patch but WoW said that i had no space... I've got 445 GB free space so I don't really know what's going on. Anyone know something that you can do?
EDIT: Just noticed that I could move the little "Insufficient space" window and click "Play".
I logged in and WoW started the Downloader. Now I can log in normally and my WoW is up to date.