I downloaded Norton Internet Security onto my laptop from my internet service provider Comcast. My operating system is Windows 7 Home Premium. If I stop using my laptop, after about 5 or 10 minutes it will crash and give me the BSOD. It does not crash while I am working on my laptop. Finally I tried uninstalling Norton and it stopped crashing. Then I reinstalled Norton and the problem began all over again. So I have again uninstalled it and my laptop is not crashing. It is also running quicker.