Hi guys i really need some help from a World of Warcraft Player i have Lich King Installed on my PC but i want to update it to cataclysm so i downloaded a patch it didn`t work so i`m now downloading a thing called WoW 3.x.x to 4.0.0 12911 EU-Stage-1 I think its a patch so if you guys help me seriously i will gladly Rep you and Thank you 20 times please just tell me what to do how do i update it thank you.