...and I've noticed: 1. No difference in performance, maybe a very slight increase. 2. The same or better battery life. I'm familiar with how Linux operating systems work, so based on what I do know, I thought that I shouldn't need one, and I was sick of driving myself crazy opening it up all the time and killing things, and as it turns out, I was right, along with lots of other info I've read online about how they're pointless.