Uninstall Dragon, use the Nuance Cleaner Tool to remove registry remnants, and reinstall after a Clean Boot .
If the error appeared after a service pack installation, you might need to reset the program's unique identifiers.
Dragon should not be run in elevated mode. If it is set to "Run as Administrator," it may conflict with the 64-bit server.
Ensure Microsoft .NET Framework 4.0 is installed correctly. You can find the installer on your Dragon disc under ISSetupPrerequisites \ dotNetFramework .
This is the most common fix recommended by Nuance support. The error often stems from a damaged Visual C++ 9.0 Runtime component. Close all open windows and applications. Navigate to your Dragon installation files or disc. Open the folder path: . Double-click vcruntime_x64.exe .
Does this error occur , or only when you try to open a specific user profile ? Information on error "Failed to launch 64-bit server"
Open (Ctrl + Alt + Del) and ensure natspeak.exe is not running. Open Command Prompt as an administrator.