Description: After you create a virtual environment, the environment fails to activate, it says "Could not load file .... ll_env \ Scripts \ Activate.ps1, since the prohibition to run a script on this system."
Cause: The default strategy is restricted, not allowed to modify any script that needs to be changed remotesigned, you can run unsigned, or other user signature script; then modify it.
1. set-executionpolicy -scope currentuser
2. Input parameters: remotesigned
Check command: get-executionpolicy