if strings.HasPrefix(path, "Volume") || strings.HasPrefix(path, "\\\\?\\") || strings.HasPrefix(path, "\\\\.\\") || strings.HasPrefix(path, "UNC") {
		return true
	}
	return false
}

// getUpperPath removes the last level of directory.
func getUpperPath(path string) string {
	sep := fmt.Sprintf("%c", filepath.Separator)
	upperpath := strings.TrimSuffix(path, sep)
	return filepath.Dir(upperpath)
}