First thing to do is to completely wipe Java. Use the automatic uninstaller. Go to Start > Control Panel > Programs and Features > Uninstall a program. Locate the Java entry and remove it completely.
After this procedure, install Revo Uninstaller and locate any other Java leftovers. Revo will delete registry items and leftover files in various directories.
Additionally, use the uninstaller tool from their official website: https://www.java.com/en/download/uninstallapplet.jsp
Once all the processes completed, restart your computer and then re-install Java Runtime using the following page: https://java.com/en/download/