Não pode ser carregado porque a execução de scripts está desativada neste sistema.
Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass
Crazy Chicken
Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass
Set-ExecutionPolicy -ExecutionPolicy Unrestricted
powershell -ExecutionPolicy Bypass -File WhateverFileYourTryingToRun.ps1