The error message "Failed to execute script mspm-source" typically occurs when a bundled application (often created with PyInstaller) cannot locate or run a specific internal component named mspm-source. This usually points to missing dependencies, corrupted installation files, or environmental restrictions on your operating system. Common Causes of the Error
Start by checking your Startup folders and Task Manager. In 90% of cases, deleting the entry from shell:startup or disabling it in Task Manager resolves the issue immediately. For persistent cases, Autoruns and the McAfee removal tool will finish the job. failed to execute script mspm-source
Open a terminal and execute:
Missing Dependencies: The compiler (PyInstaller) failed to include necessary libraries, such as mspm-source, during the build process. The error message "Failed to execute script mspm-source"