Powershell Solo-Ordner eine Ebene verschieben

$BasePath=("D:\")  
$BasePath |%{
    $BaseChild=gci $_ | Where-Object {($_.PSIsContainer)} 
    GCI $BaseChild -Recurse | Where-Object {($_.PSIsContainer)} |%{
        $ChildFolder=$_.FullName
        if(!((GCI $ChildFolder) | Where-Object {!($_.PSIsContainer)})){
            $OrdnerohneDateien=$_.FullName
            #Write-Host "$OrdnerohneDateien Es gibt keine Dateien" 
        
            (Get-Item $OrdnerohneDateien)| Where-Object {($_.PSIsContainer)} |%{
            
                $thisfolder=$_.Fullname
                #Write-Host "checking $thisfolder" 
                if(((GCI $thisFolder)| Where-Object {($_.PSIsContainer)}).count -eq 1){
                    #Write-Host "Thisfolder: $thisfolder has 1 Subfolder" 
                    $movefrom=gci $thisFolder |select -ExpandProperty fullname
                    $moveto=(get-item $thisfolder ).parent.FullName
                    if(!((get-item $movefrom).Basename -eq (get-item $thisfolder).Basename)){
                        Move-Item $movefrom $moveto -force
                    }else{
                        $newfolder=(get-item $thisfolder).Basename +"1"  
                        Move-Item $movefrom $($moveto+"\$newfolder") -force  
                    }
                }
            }
        }
    }
}