param(
    [Boolean]$Debug = $true
)

## Get identity from Windows
$windowsIdentity = [System.Security.Principal.WindowsIdentity]::GetCurrent()

function Get-AdminStatus {

    $windowsPrincipal = New-Object System.Security.Principal.WindowsPrincipal($windowsIdentity)
    ## Check if identity is an admin
    $isAdmin = $windowsPrincipal.IsInRole([System.Security.Principal.WindowsBuiltInRole]::Administrator)

    if ( $debug -eq $true ) {
        if ( $isAdmin -eq $true ) {
            Write-Host "User [$($windowsIdentity.Name)] is an Admin"
        }
        else {
            Write-Host "User [$($windowsIdentity.Name)] is not an Admin"
        }        
    }

    return $isAdmin

}

## Check if a user is an administrator
$adminStatus = Get-AdminStatus

if ( $adminStatus -eq $true ) {
    Write-Host "User [$($windowsIdentity.Name)] is an Administrator."
} else {
    Write-Host "User [$($windowsIdentity.Name)] is not an Administrator."
}