How to install 64 bit version

  • I have been running the 3 bit version all this time of Diablo 3. How to I get the 64 bit version installed?
  • If you've been keeping the game up to date then the 64 bit client should already be installed and available. If your computer supports it, then it should automatically be using the 64 bit client. You'll want to make sure that the checkbox indicated here is not checked.