"ERROR: The Installer was unable to read the file "Diablo III\Bnet\battle.net.dll". This error may be caused by problems with the media or drive at <unknown> --for example, a scratched or dirty CD-ROM/DVD-ROM, hard drive corruption, or a networking problem while downloading the installer. (The error code was 0.): DecompressJob::Execute()"

I've bought the digital version and I have downloaded the latest Setup. I have absolutely no idea what could be wrong, some help would be appreciated!