private void btnDefragDrive_Click(object sender, RoutedEventArgs e) {
string DriveLetter = "";
if (!_ShellListView.SelectedItems.Any())
DriveLetter = _ShellListView.CurrentFolder.ParsingName;
else if (Directory.GetLogicalDrives().Contains(_ShellListView.SelectedItems[0].ParsingName))
DriveLetter = _ShellListView.SelectedItems[0].ParsingName;
else
DriveLetter = _ShellListView.CurrentFolder.ParsingName;
Process.Start(Path.Combine(Environment.SystemDirectory, "dfrgui.exe"), $"/u /v {DriveLetter.Replace("\\", "")}");
}