OK i made this because some people felt that Suzhou-Alex's guide was a bit unclear (no offense to you at all if youre reading this btw)

anybody that does not understand/cant figure out for the life of them how to fix their WoW, here it is:

alrighty.
get an english client or whatever language you want it to be in. patch
it all the way up to 3.1.3, and no further.
be sure to back up your folder just in case. should anything go wrong.
now download http://www.filefront.com/14167869/WOW_chinese_rootfiles.rar
delete EVERYTHING that is not a folder (ie wow.exe repair.exe wowerror
unicows... whatever.) in the WoW folder.
now you just have a wow folder with more folders in it. nothing but
folders. extract the file you just downloaded into your WoW folder. its all the files you just deleted but like from the CWOW game. then go into the Data folder and then the enUS (or DE or GB or whatever your language it) folder. you should see all these .MPQ files, like expansion-locale-enUS.MPQ and patch-enUS-2.MPQ and many more. change every enUS to enCN. so expansion-locale-enUS is now expansion-locale-enCN and so forth. also change the folder name (the enUS folder in the Data folder) to enCN. then change the realmlist. paste this exactly into realmlist.wtf:

set realmlist cn.logon.warcraftchina.com
set patchlist cn.version.warcraftchina.com
set realmlistbn ""
set portal cn

then download and extract http://www.filefront.com/14164105/Data.zip
Now check your World of Warcraft \Data\ folder for a file called “patch-e.MPQ” (which is around 65KB) and inside the enCN folder for a file called “patch-enCN-3.MPQ” (which is around 66KB).

THEN
download and extract http://www.filefront.com/14163759/SimpLauncher_3_1_3.rar

You have to start the game with this skeleton.exe file.

When you start this file, a little window pops up. there is an upper
and lower section. In the top section, tick the top left option. This
lets you play on Chinese servers. Push the big button and the game
should start.

thats it.

also, in case:

Fonts:

Download the file Fonts.rar from the following link here on this webpage.
https://wow-in-chinese.forum2jeux.com/technical-support-f2/chinese-font-link-updated-t800.htm
Extract this folder to your World of Warcraft folder.
Inside the folder “Fonts” must be now the following files inside:
ARIALN.TTF 22731KB
FITZQT_.TTF 22731KB
MORPHEUS.TTF 67KB
SKURRI.TTF 2122KB

good luck!

oh and be sure to back up your folder just in case.

lol Uber might want to add the backup part at the beginning of your guide caus if you loose the original files you won't be able to update or repair your game, ever, and only way will be a full reinstall, which in worst cases means full redownload ^^'

right good idea.

Mods can we make this post sticky?

Excellent! Very clear, though I wonder what might happen to Macs...