Known Crash or failure to launch causes:     - Anti-Virus deleting parts of the install... disable or turn off completely AV prior to install.  Install game as Admin.   -  Anti-Virus blocking launcher64.exe... put exceptions for launcher into Windows Defender and any other AV program you are running.   -  Latest version of .NET Framework not installed... Install.   -  Win10 Controlled Folder Access is turned on.  It blocks Launcher.  Turn it off or ad