IE 11 add-on

Name                Norton Vulnerability Protection
Publisher           Symantec Corporation
Status              Enabled
Architecture        32-bit
File date           ‎Monday, ‎August ‎25, ‎2014, ‏‎10:25 PM
Version             12.2.0.0


This feature has a habit of turning itself off every now and then and I have to continuously turn or enable it from time to time. Why does it turn off or disable itself??? and also why is it 32bit on a 64bit system?? I don't know if it disables after IE is restated or what but every now and then I find it disabled!!