Norton 360 using 60-95% disk continuoully for several days

Norton 360 has been using 60-95% of disk space continuously for several days.  Laptop i3, 4 gig ram Running Windows 10  Machine ran Friday and  through noon today.  I then shut down  laptop waited 30 mins and restart with same results.

This just started and I know of no changes other than Windows normal updates are "auto".  

Any suggestions,  the laptop multiple of times slower than ever before.

 

Thanks