How disable the security warning “Run only scripts that you trust. While scripts from the Internet can be useful, this script can potentially harm your computer. Do you want to run” in POWERSHELL
Solution :
1. Uninstall the Windows component “Internet Explorer Enhanced Security Configuration”
2. Open a POWERSHELL console and execute the following command :
Set-ExecutionPolicy Unrestricted
blogs.msdn.com : Running Scripts Downloaded from the Internet
blogs.msdn.com : Building on PowerShell: Execution Policies