High cpu usage at start up

i dont know if this is or isnt related to the last patch ( update) but thats when i started to notice this issue ( maybe coinicidence?)

computer slows does at start up ( window notification icon turns red says i need firewall/antivirus thing ) gets sluggish

looked in history ( security / history on program) see this

 

high disk read usage by : norton utilities advanced scanner activity

 

click more options shows

 

nuperfscan.exe ( file location)

under that at left colum ( right colum shows normal)

 

process id 364

memory normal

disk read activity 63mb ( for this process)

 

 

not sure what is causing this or how to fix it, all i could find in a search was to run the power eraser , all clean as a full scan

 

there some bug ?

some setting i need to change?

 

thanks for your time and help