Just follow these steps:-

  1. Create a new Folder.
  2. Choose the rename option and press "alt+255 " .
  3. Then right click the folder option go to properties-> customize-> change icon and choose none.
  4. ... and u have a invisible folder.
  5. You can select it by dragging mouse while holding down the right click and store anything and no one will ever be able to see it. (See the example snapshot below)