How to create and run a PowerShell script file on Windows 11 or 10

To change the execution policy to run PowerShell scripts on Windows 11 (or 10), use these steps: Open Start. Search for ...
Ars Technica

Powershell: Run a command at the top of every minute.

This is a simple question that will probably be easy for you to answer. I know I could Google a code snippet to do what I need to do. I hope that, more than giving me the right code, you can explain ...