Get-WMIObject Win32_LogicalDisk -filter "DriveType=3" -computer localhost | Select SystemName,DeviceID,VolumeName,@{Name="Size(GB)";Expression={'{0:N1}' -f($_.size/1gb)}},@{Name="Free Space(GB)";Expression={'{0:N1}' -f($_.freespace/1gb)}},@{Name="Free Space(%)";Expression={'{0:P2}' -f(($_.freespace/1gb) / ($_.size/1gb))}}