In almost all cases it has to do with an overlay that the 3rd party programs use that causes the crash.
If it's asking for a disk then it means an entire data tome is missing from the download.
I'd recommend restarting the downloader to see if you can pick that up.
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.
Please check this link for more information: the Beta, several startup issues were resolved by setting the Diablo III tools to run in Compatibility Mode.
At this time, Compatibility Mode for the retail tools is no longer needed.
installers start running today (even though you can install the game, you can't play until midnight PST), a host of issues have cropped up.
Most of these can be solved by commonsense troubleshooting techniques, but some others are a bit more .
In fact, setting the tools to run in Compatibility Mode may cause other issues with the Blizzard Launcher.
If you are having issues with the game and normal troubleshooting steps have not helped, please create a thread here or you can create a Support Ticket on your Account Management page.
Though the downloader may show 100%, please allow some time for it to fully complete.