Norton internet security 2013 - does not works well in windows 8 pro

I am having Dell Inspiron 14 R laptop with Windows 8 professional with Norton Internet security 2013.

 

Problem is Norton internet security too often fails to perform Custom scan, quick scan, full scan and also live update.  I dont know whether i am protected or not. Kindly Norton give an product update which works completely with Windows 8.. it is been disgusting.