google chrome displays on the start menu. what to do?

google chrome icon display when i press start button in windows 7. when you put your pointer to that icon it shows the whole history. i dont want that because people can easily see my web history if i forgot to clean so please tell me a way to remove that icon from the display list plz...i dont want to remove it from the all programs list but i want to remove it from the display list. every time i remove it it appears again when i open google chrime.