I've got an inspiron 1520 with 2gb with vista and when I uninstall programs it does not seem to register under my overall os (start>computer>os).  Before I uninstalled itunes I had 64mb free and after I uninstalled it I still have 64 gb free, is this wrong? Any ideas what this means?  I am removing programs to see if it will help my reliability and i do have mcafee anti virus and spy sweeper running so I am pretty sure it is not that.  Any ideas?