Hello, as it seems we're getting a new patchlette every day lately, I wrote a simple batch script to simplify updating the game client. This assumes you are using an enUS base install with Windows 7, connecting to a zhCN server.

Simply create a new text file in your World of Warcraft directory and name it update.bat

Run it whenever you need to update or repair your installation.

Code:

@echo off
rmdir /s /q cache
rmdir /s /q C:\ProgramData\battle.net
del wow.mfil
del wow.pfil
del wow.tfil
del launcher.db
::TIP - If you encounter issues initializing/updating uncomment the next two lines
::del battle.net.dll
::del wow.exe
echo|set /p="enUS">launcher.db
"World of Warcraft Launcher.exe"
::Once the game is up to date close agent and press any key to continue
pause
del launcher.db
echo|set /p="zhCN">launcher.db
wow.exe

I decided not to mess with WTF\config.wtf for simplicity: You'll still need to set portal to CN manually.

Anyway, if anyone wants to verify that this works for them, too, that'd be great. Yeah.

Hope this is helpful!