Diablo 3 - D3-0-9991-WIN-FINAL corrupt: the fix

Some friends of mine (not only one sadly) have trouble with today path of diablo 3.
The problem come from the D3-0-9991-WIN-FINAL file is corrupted.

There are two solutions:

• delete the corrupted file (only that one!) and try to relunch the updater (you can find the file in your installation directory, for me is C:\Program Files (x86)\Diablo 3\ ): try many times before give up, not always the fist time is successfully.
• the other trick is to download this file
  http://blizzard.vo.llnwd.net/o16/content/d3-pod-retail/NA/8370.direct/Updates/d3-0-9991-Win-final.MPQ
  and save into this folder of the game installation:
  C:\Program Files (x86)\Diablo 3\Diablo III\Updates
  (this is from my PC)

Let us know if you have any other problems!

Enjoy the game