If it were me, I would uninstall all variations of Java, run a scan with MSE & MBAM, remove all issues found by either of those two tools, then reinstall the latest Java. If you don't really need Java, then I would not reinstall it, as it is an easy target for attacks. The easiest way to find out if you really need Java, is to not install it, and then use your machine as normal and if you don't get prompted to install Java while doing your normal routine, then you don't really need it. I have been Javaless for over 2yrs and don't miss it a bit.