When I turn on my computer, it turns on very slow and Norton antivirus is active but won't let me open the 'norton security suite'. Every once in a while ill get a blue screen...i had a windows 7 home basic so i decided to bump up and install windows 7 home premium...it does the same thing as before but the blue screens have stoped. Something i didn't mention before is that when i'm sufing the web on safari or firefox i always get this warning from norton saying that 'winrscmde high cpu usage'. Windows update fail constantly, norton warns me about high cpu usage. Can someone please help me get rid of this.