I had an Averatec laptop with a Pentium 4HT... Those processors should have never been put in laptops, it acted like an oven for the family jewels if you actually put it on your lap.
I'm assuming you are running Windows XP; you can disable Security Center by running services.msc and looking for the service named "Security Center". Right-click, hit properties and change "Startup type" to "disabled." Hit the "Stop" button, hit "Ok" and you should be good.