This error typically appears when running a Python application bundled into an executable (e.g., with PyInstaller) and the bundled app fails during startup. The following steps diagnose and fix common causes.
For larger projects, generate a .spec file and customize it: failed to execute script mspm-source
Clear your folder: Press Win + R , type %temp% , and delete all files in that folder. 3. Check Task Scheduler This error typically appears when running a Python
In these cases, contact your IT department or run a full offline antivirus scan using Windows Defender Offline or a bootable antivirus USB. failed to execute script mspm-source