Stuck at 30% Updating Setup files.

Technical Support
I'm using Windows 7 64-bit. I've tried both a digital and disc install. I've deleted my folder multiple times. I've tried ending Agent.exe in task manager and every time I do it instantly comes back. I've tried firing up agent.exe then the installer. I have secondary logon enabled. Firewall and everything is down. Only version of Agent I have is Agent.524. No copy of Agent.913 in my folder. I'm at my wits end.
This is exactly where it's hanging up on.
Same issue here, except mine is getting stuck right at the end. This started after deleting C:\ProgramData\ and ending Agent.exe in an attempt to fix:

ERROR: The file "c:\Program Files (x86)\Diablo III\Updates\d3-09558-Win-final.MPQ" appears to be corrupt. You may need to download this file again.

Deleted the file in question as well. Not sure what to do now.
At least that's something. I have it running in Windows Service pack 3, admin mode. The whole forum recommendation shebang. Still nothing.
same here. stuck as a duck.
I'm guessing that Blizzard has not figured out Windows 7 64 bit. I really don't want to have to install to XP.
there is a stick post about making sure secondary logon service is enabled; but that didn't help me
i get to about 60-70% and it stops no luck as well :(
I have windows 7 32 bit, and I am having a similar problem, if not the same one.
Go here:

Download these 2:
Diablo III/WoW MoP Launcher
Diablo III/WoW MoP Update Agent

Run the installers, then run the Diablo 3 installer. Just worked for me.
vista stuck as well about 70%
Same here. Have tried doing several things with no success. Some times it gets stuck at about 95% and other times 30%. I have no idea....

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