Or Fix ” Script_XYZ cannot be loaded because
running scripts is disabled on this system. For more information, see about_Execution_Policies at

Easy fix, open up an administrative powershell and enter

Set-ExecutionPolicy unrestricted

It is out of the question that this makes your computer vulnerable for attacks via PS scripts.
Use at your own risk, know what you are doing.

If you do not want to accept the security risks of enabling scripts system-wide, you might want to check out this single-case solution which you can use to bypass restricted execution for single powershell scripts
(from an elevated powershell)

powershell.exe -noprofile -executionpolicy bypass -file .\yourScript.ps1