public static void cleanUp() {
   ModPack pack = ModPack.getSelectedPack();
   File tempFolder =
       new File(OSUtils.getDynamicStorageLocation(), "ModPacks" + sep + pack.getDir() + sep);
   for (String file : tempFolder.list()) {
     if (!file.equals(pack.getLogoName())
         && !file.equals(pack.getImageName())
         && !file.equals("version")
         && !file.equals(pack.getAnimation())) {
       try {
         if (Settings.getSettings().getDebugLauncher() && file.endsWith(".zip")) {
           Logger.logInfo("debug: retaining modpack file: " + tempFolder + File.separator + file);
         } else {
           FileUtils.delete(new File(tempFolder, file));
         }
       } catch (IOException e) {
         Logger.logError(e.getMessage(), e);
       }
     }
   }
 }