I have several Java Updates in the list of programs the Windows uninstaller provides. Their are listed like: Java (TM) 6 update 3 In addition to 3 there is a, 4, 5, 7 and 17 (if my memory is correct) I guessed they were programs that made mod to the main Java program and were no longer needed, so with some worry I did uninstall 3, the one fully named above. I was surprised by how long it took and the number of times I was given the opportunity to cease. (More than any other uninstall ever done) Thus my worry increased. I don't actually know when I am using Java, but just before doing this uninstall I think I did as I filed my taxes in Brazil via their program and part of its name had "Java" in it. What I am hoping for here at sciforums is some reassurance that I can uninstall all other Java updates. I.e. that I am correct in thinking they have modified the main Java program and are not need any more. My fear is that during the uninstall they undid the modifications they made and that is why the uninstall took so long. I routinely uninstall all downloaded programs that have extension ".exe" after I have run them. I like to keep useless files out of my hard drive, and think doing this helps. I know very little about computers and now have worried myself with the Java update uninstall as in the list I did not see any extension.