When I try to installation the Patch, it always said "Could not retrieve installation folder!Installation will about.". Why it will happen? I have reinstall the game many many time but the problem are still there....can anyone help me?

Try to install in the 'normal' location. Like C:\Program Files\[etc]
Or try downloading the 'other' patch (so USA->EMEA and EMEA->USA vesion) to see if that helps.

Thanks For Helping....But still have the problem, it just like the "reg" of my game is wrong......can anyone tell me how the patch identify your game installation folder....I think it may get work for me......