Download the "Offline" java installer, then close Browsers & LW & anything else connecting to the internet. Then use the add/remove control panel to remove all versions of java/jre/jse. Then install the offline Java:
Download Java software from Sun Microsystems (2nd on the list I think about 13 MB download)
BTW sometimes going into LW's options & unchecking the share option press apply, then rechecking it & applying it. Close both iTunes & LW & see it is ok.