Add-LocalAdministrator.ps1

<#
.SYNOPSIS
	This script was created for use in ConfigMger Run Scripts
.DESCRIPTION
	The Members
.PARAMETER Member
    Specifies an array of users or groups that this cmdlet adds to a security group.
    You can specify users or groups by name or security ID (SID).
.EXAMPLE
    Add-LocalAdministrator.ps1 -Member 'domain\user'
#>
Param(
    [Parameter(Mandatory=$true)]
    [String]$Member
)

Write-Host "Attempting to add $Member to the local admins group"
try {
    Add-LocalGroupMember -Group "Administrators" -Member $Member
}
catch {
    Write-Host "Failed to add $Member to the local admins group"
    Exit $LASTEXITCODE
}
Write-Host "Added $Member to the local admins group"
Exit 0