Note: This is only applicable to Dell PC! Ref: http://en.community.dell.com/support-forums/software-os/f/3526/t/19634253 There is a bug in Dell's Backup and Recovery software that is causing any 64-bit application which uses the Qt5 core DLLs to crash. The below are the 2 methods to fix. 1st Method: - Apply Fixed Patch 1) Make sure Dell's Backup and Recovery software is installed. 2) Confirm the installed path was under C:\Program Files (x86)\Dell Backup and Recovery\ 3) Copy the Fixed Patch zip file from https://ftp.reallusion.com/reallusionsupport/Fix_for_DELL.zip to local drive and un-compress it. 4) Double click to run "UnregisterDellShellExtension.bat". Note: If to restore from the Fixed Patch, just double click to run "Restore.bat". 2nd Method: - May uninstall the AlienRespawn or Dell Backup and Recovery application that is responsible for the crash. This utility software is pre-installed on new Dell and Alienware computers and is incompaiible with CrazyTalk 8. http://www.alienrespawn.com/