Failed To Execute Script Mspm-source [better]

"failed to execute script mspm-source" typically occurs when a standalone Windows executable (often built with PyInstaller

Run a full scan with the Microsoft Safety Scanner to ensure no other malicious processes are running. failed to execute script mspm-source

Common Causes of the "Failed to Execute Script MSPM-Source" Error "failed to execute script mspm-source" typically occurs when

Note the full Python traceback — it shows the real exception and failing module.

Permissions / antivirus interference

Enable verbose PyInstaller logging: add --log-level=DEBUG to build or run in console.
Build without --onefile (use --onedir) to inspect extracted files and ensure resources are present.
Use a minimal test script that imports suspect modules to isolate which import fails.
Add try/except around top-level imports to print helpful messages.

To exclude in Windows Defender: