You could try WizTree (wiztreefree.com), qui is similaire to WinDirStat mais it bypasses le filesystem driver et reads le MFT directly si run as an administrator. It will show space taken by alternate data streams, metadata files ($MFT, $Secure, $BadClus, etc.), et directories you ne have access to. It ne appear to show space allocated for directory indexes, et it may miss certains autre things, mais I ne voudrait pas be surprised si le culprit does show up.