Apparent Popup Adware

I am very frustrated with this apparent popup adware even I was not using internet.  This just happened a few days ago.  See attached file.  I use McAfee in my computer when this happened.  I call for removal (paid) service from McAfee and they could not remove this adware.  I use NIS now and still can't remove it from my computer.  Any help to remove is very much appreciated.

 

This popup shows up periodically and disappear (every 5-10 minutes).  Sometime it come with images, apparent ad with some animation.  Sometime it is blank.  The screen has a title: Dialog.  The contents have something to do with Consumerreward.us.com.  Sometimes, it has error message from executing the popup.

I have searched Norton's knowledge and could not find any helps (surprisingly).  It happens again as I type. (See attachment 2&3)  It seems to do no harm to the pc except that it is very annoying.

Regards,

Eric 

 

dialogscreen.png

 

dialogscreen1.png

 

dialogscreen2.png