Norton INS 2010 Scan

I am running Internet explorer 8 and Internet security 2010 last version

Whwn i click internet security the main window i click Norton Insight in High Trust show me I need to Scan only 11%  in this window is not a button for Scan I go to the main window and in Scan is only 3 options Quick Scan, Full Scan, and Custom Scan I click in full Scan and he star duing the full scan and not the 11%.

What I have to do to only Scan the 11 %

Thanks for help me in this matter

 

Jucoe