Run a full scan with the Microsoft Safety Scanner to ensure no other malicious processes are running.
If it says "File Not Found," ensure all required source folders are in the same directory as your 4. Clear Your Temporary Files
Navigate to the folder containing the file using the cd command (e.g., cd C:\Users\Username\Downloads ).
The executable cannot find necessary DLLs or Python libraries ( .pyd files) within the application bundle. failed to execute script mspm-source
The file mspm-source is not a standard Windows system file. Instead, it is almost always associated with third-party software, most commonly or other McAfee products. The term "mspm" often stands for McAfee Security Platform Manager or a related background service.
This error often follows a Windows Update that breaks compatibility with specific application versions.
Sometimes the script is triggered by a timed task rather than a login entry. Open the and search for Task Scheduler . Run a full scan with the Microsoft Safety
The application lacks permission to write to temporary folders or execute scripts, especially common if installed in C:\Program Files .
When you run a packaged script, it extracts its core assets into a temporary directory on your computer before running. If these temporary files become corrupted, the script will fail. Press Windows Key + R , type %temp% , and press . Look for folders prefixed with _MEI (e.g., _MEI12345 ).
Non-administrative local user sessions or automated non-interactive tasks. Step-by-Step Resolution Strategies 1. Adjust the System Execution Policy The executable cannot find necessary DLLs or Python
Upon launching the executable, the application immediately crashes and throws a generic error window stating: .
Windows- Pyinstaller Error "failed to execute script " When App Clicked 21 Nov 2016 —
Instead of the window closing immediately, the Command Prompt will stay open and show the specific Python traceback error (e.g., ModuleNotFoundError FileNotFoundError ), which can tell you exactly what is missing. If you can provide the exact name of the software
If it works, add the script to your antivirus . C. Reinstall or Rebuild the Application
When run from an already-open terminal, the error message will remain visible. You will likely see a full Python traceback (e.g., ModuleNotFoundError: No module named 'xyz' or FileNotFoundError: [Errno 2] No such file or directory ).