Better elevation script for powershell

elevate.ps1

#
#  Copyright (c) Microsoft Corporation. All rights reserved.
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#  http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#
#=========================================================================
# ELEVATE-THIS-SCRIPT
#=========================================================================
If (-Not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) {
    Start-Process -wait -FilePath PowerShell.exe -windowstyle hidden -Verb Runas -WorkingDirectory (pwd)  -ArgumentList $(@($MyInvocation.Line.Replace($MyInvocation.InvocationName, $MyInvocation.MyCommand.Definition) ,"$($MyInvocation.InvocationName) $args")[$MyInvocation.MyCommand.Definition -ne ""]) ; return
}
 
# actual script requirng elevation goes here.