NIS 2012 keep disabling my java

I installled a java update [7 update 9] and NIS disabled it, saying it "blocked/removed a trojan"- java.something. It removed a crucial part of the program. Some are in quarantine others are blocked/removed.

Now I can't use my computer, Why doesn't it put it in quarantine so I can decide whether or not I want it remobed??!

 

Now when I uninstall and reinstall java, it won't work.