$USS_Folder = "D:\POBRANE"

get-childitem | % {

    $file = $_.FullName
    $date = Get-Date ($_.CreationTime)
    $month = $date.month
    $year = $date.year
    $TARGETDIR = "$USS_Folder\$year\$month"
    if(!(Test-Path -Path $TARGETDIR )){
        New-Item -ItemType directory -Path $TARGETDIR
    }
    move-item $file $TARGETDIR
}