I am having hp 540 notebook with processor core 2 duo. I have installed CLC,CC,SC and Walrus runs fine when I try to run NC, I get error "Not virtualization enabled" means my laptop does not support virtualization. I got it. Then, In my college, there is Dell desktop PC having processor Core 2 Duo. But it has virtualization enbled.So I get confused. How same thing has different effects. So my questions are Which thing is essential for Virtualization?? What should I upgrade in my Laptop Processor or buy a new one?