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In a PowerShell script, how can I check if I'm running with administrator privlieges?

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up vote 8 down vote accepted

Have a look at:

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$currentPrincipal = New-Object Security.Principal.WindowsPrincipal( [Security.Principal.WindowsIdentity]::GetCurrent() ) &{ if ($currentPrincipal.IsInRole( [Security.Principal.WindowsBuiltInRole]::Administrator )) { (get-host).UI.RawUI.Backgroundcolor="DarkRed" clear-host write-host "Warning: PowerShell is running as an Administrator.`n" } – davey Dec 17 '09 at 20:16
thanks that worked! – Michael Kelley Dec 17 '09 at 20:30
function Test-Administrator  
    $user = [Security.Principal.WindowsIdentity]::GetCurrent();
    (New-Object Security.Principal.WindowsPrincipal $user).IsInRole([Security.Principal.WindowsBuiltinRole]::Administrator)  

Execute the above function. IF the a result is True, the user has admin privileges.

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This only determines if the user running the script is an administrator on the machine -- and not if the script is currently being executed with administrative privileges. In other words, this will still return true even if the user did not use "run as administrator" to launch the command shell. – Holistic Developer Oct 17 '14 at 19:34
@HolisticDeveloper, that is incorrect. If you aren't elevated, it will return false – charleswj81 Jan 8 '15 at 16:33

In Powershell 4.0 you can use requires at the top of your script:

#Requires -RunAsAdministrator


The script 'MyScript.ps1' cannot be run because it contains a "#requires" statement for running as Administrator. The current Windows PowerShell session is not running as Administrator. Start Windows PowerShell by using the Run as Administrator option, and then try running the script again.

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Not exactly what I was looking for but still very useful. Thanks Eddie! – Michael Kelley Mar 19 '15 at 17:31

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