US COMBAT ARMS ?
Ok , Do exactly what I ask -
Go to System ( C: )
-Nexon folder
-Combat Arms Folder
-HShield Folder
-Double click an icon that looks like a shield, called HSUpdate
-THEN go to the UPDATE FOLDER inside the HShield folder
-Double click an icon that says "autoup" it WILL be there.
Ask if you need anymore help , the files should be there. If they aren't that's probably the problem .