Just delete the files from the following folder:
After this install again, & then go to task manager, end all javaw.exe & java.exe, jucheck.exe & also delete the jucheck.exe from the system (also delete these files "C:\Program Files\Common Files\Java\Java Update")
Once done reinstall, & it will be done. Prior to reinstall, just clear the registry twice & restart the system.
This problem will be solved.