For Diablo 3, when I open the game it says it is updating tools and then updating blizzard launcher. When it is updating the tools it takes at least a half an hour and sometimes doesnt even work. When it does work a message box pops up that says failed to update tools.

The game will then close but if I click on the game again it will just to the updating blizzard launcher step. This process will also take 15 to 20 minutes but once its done I can start playing the game.

Is there any way to fix this? I have windows 7 with trend antivirus.

  • actually now it is no longer skipping the updating tools step the second time through
    – Kyle
    Commented May 27, 2012 at 22:31
  • do you have some form of antivirus running? if so try disabling it's auto protect and firewall during your time running the game.
    – Ender
    Commented May 27, 2012 at 22:45
  • possible duplicate of Failed to update tools
    – EBongo
    Commented May 28, 2012 at 1:18

1 Answer 1


In the answers to this question you can see the "-launch" flag which will bypass the launcher update. I've tried it and it at least doesn't break anything, but it may have side effects. It may at least be a stop gap, while you figure out the underlying problem.

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