Optimizer takes long time to finish and unable to stop it also in NIS 2012 beta

First you have to open the Norton Internet Security 2012.
Now after opening the Norton Internet Security 2012 you have to click on the performance link.
in performance link you will see the option for the Norton Tasks.
Now you have to click on the Norton Tasks.
After clicking the Norton task you will see the list of tasks which are currently running.
After that you have to locate the insight optimizer option.
After that you have to click on the insight optimizer option and after that you have to disable it.

Now after disabling it you have to check whether you are still having the same problem or not. As far as I know after disabling the insight optimizer you will not get any issue and your system will also run smoothly.