Scan

I open first internet Explorer I go to the home page of Norton antivirus 2010  click application rating he show 12% need scan

I have the High trust open in the application rating page then I have to go to  the home page Scan and click run full system scan, but seems he is not scan the 12@ because take a long time to do and  I have to stop the scan.

Please some body can tell me what is the right way to do.

   Thank you Jucoe