Powershell Run-As Script

Posted by marc dekeyser on Geeks with Blogs See other posts from Geeks with Blogs or by marc dekeyser
Published on Wed, 05 Dec 2012 07:59:25 GMT Indexed on 2012/12/05 17:05 UTC
Read the original article Hit count: 275

Disclaimer: This script is not of my own making. I found it on a share somewhere and it is so handy I started using in a bunch of scripts. To the writer: If you're out there, somewhere, when you see this, thank you!

Check if script is running as Adminstrator and if not use RunAs
    # Use Check Switch to check if admin
    
    param([Switch]$Check)
    
    $IsAdmin = ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()`
        ).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")
        
    if ($Check) { return $IsAdmin }    

    if ($MyInvocation.ScriptName -ne "")
    {
        if (-not $IsAdmin)
        {
            try
            {
                $arg = "-file `"$($MyInvocation.ScriptName)`""
                Start-Process "$psHome\powershell.exe" -Verb Runas -ArgumentList $arg -ErrorAction 'stop'
            }
            catch
            {
                Write-Warning "Error - Failed to restart script with runas"
                break              
            }
            exit # Quit this session of powershell
        }
    }
    else
    {
        Write-Warning "Error - Script must be saved as a .ps1 file first"
        break
    }
write-host "Script Running As Administrator" -foregroundcolor red
Write-host ""

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