I wonder how much should be the CPU usage of notebook if you are not doing any task. I have insttaled many security appliances on my PC and now my notebookk is a bit sluggish. Just i saw mu cpu usage graphs and there are many spikes of 100% CPU usage. I want to know is this normal. I am using following real time security scanners, and other application Norton internet security Antihook Winpatrol free Prevx R1 Ms antispyware ShadowUser trial DU Traffic( a dial upmonitor) I am just wondering if my CPU and memory usage is high. CPU graph is taken when notebook was idle with dial up internet connection working.