#Get-WinSATScore gets the Windows Experience Index settings for 
#Windows 8.x.  It alsow works with Windows 7 where PS 3 is installed.
#alan at akaplan dot com
#12/28/2013
#www.akaplan.com/blog

#Requires -version 3
function Get-WINSATscore{
    param(
        [Parameter(Mandatory=$False)]
        [switch] $ReRun
         )
    if ($ReRun){
        Try{
        Start-Process WinSAT -argumentlist Formal -NoNewWindow -Wait  
        $file = Get-Item -Path $env:Windir\performance\WinSat\Datastore\*formal* |
        sort LastWriteTime | select -last 1
        }
        Catch {$error[0].Exception.Message
        break
        }

    }else{
        $file = Get-Item -Path $env:Windir\performance\WinSat\Datastore\*formal* |  
        Sort-Object -Property CreationTime -Descending |
        Out-GridView -PassThru -Title 'Select Test to View, then press [Ok]'
    }
    $xml = [xml](Get-Content $file)
    "WINSAT Scores from test run on " + $($file).creationtime 
    Write-Host "(Use the -ReRun switch to update)"
    return $xml.winsat.WinSPR
}