Restart PowerShell as Administrator

$currentIdentity = [Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()
$isAdministrator = $currentIdentity.IsInRole([Security.Principal.WindowsBuiltInRole]'Administrator')
if (-not $isAdministrator) {
    $Arguments = ('& ''{0}''' -f $MyInvocation.MyCommand.Definition)
    Start-Process PowerShell.exe -Verb RunAs -ArgumentList $Arguments
    break
}