Learn about Windows PowerShell
Summary: Use Windows PowerShell to unblock files downloaded from the Internet.
How can I use Windows PowerShell to unblock a script that I downloaded from the Scripting Guys Script Center Repository so that I can to use it?
If you are sure you want to run the script, use the Unblock-File cmdlet:
Unblock-File -Path C:\fso\Register-FileToDelete.ps1
Works like charm in V3 and V4