Recently I have purchased a new Netbook for my home. I have installed trend micro Titanium internet security to protect my system against viruses and spyware. I have noticed that since I have installed this trend micro Titanium internet security, my system has become very slow and coreserviceshell.exe V 3.1.1109 is consuming lot of CPU usage. I want some trick to resolve this issue. I have been using trend micro Titanium internet security from past 5 years so I want to continue using it. But the problem is that it takes up lot of battery. I expect some advice regarding this. Any suggestions would be greatly appreciated. Thank you!