The game requires it and will not run if it's disabled. f you're encountering crashing when launching the game, we ask you to check and see if you have any of the following third party programs running.
When restarting the downloader, make sure to select the same download folder that you did before.
It should have the Diablo 3 installer file inside it. It will launch the installer on its own when it is done.
If you've pre-downloaded the digital version of the game in these languages before AM CEST ( AM GMT) on Saturday May 12, you must obtain the new downloaders to be able to install properly once the game is released on May 15.
We apologize for the inconvenience, and ask that you please let friends and acquaintances know so they can begin downloading the working installer that's now available. Obtain the new Diablo III digital downloader using the links below 2.
Whether you repair your previous install or download the entire game again, it's necessary to use this new downloader to install and play the game when it launches.
If you try running the Diablo III file and nothing appears to be happening, check to see if the Windows Service for Secondary Logon is enabled. This service being disabled may also cause the system to appear to hang during the "Updating Setup Files" portion when run.
Point the download save at the same directory as before The folder in question is your main game data folder.
If you have the game downloaded to D:\Games\Diablo-III-8370-en GB-Installer, please point the download to D:\Games\.
When it has finished downloading the files to completion, it will launch the installer on its own. This error message generally indicates that the installation files may be corrupted, damaged or incomplete.