Ok lets see what happens when you re-install the game, if it fails post up your launcher log.
Only suggestion I have at this point without know what motherboard you have is check the manufacturers website and have the latest bios and chipset drivers installed.
I'm in shock... after 4 days it finally updated without a stall / error and I was finally able to get back in the game!
Not a clue as to how it worked but I'm not complaining!
Thanks for your attempts to assist, it was much appreciated!