Ok, so I've had the SP3 for roughly 2 months. from day one the fan would just spin and spin. When I say spin it sounded like white noise out out of a speaker. loud and annoying. Several people commenting on it at school as I'm taking notes. Now I know the fan serves a purpose, keeps the surface cool. Well to the touch, top back right corner, it was HOT. It never shut down on me. but if I left my hand there for 10 secs it was VERY uncomfortable. So I started to do some research last night about the issue and came across a number of threads and articles. Most of the threads were dated by in august, nothing really current except on the MS forums. I took some user advice and checked out task manager to see what was going on. Just sitting on the desk, with no programs or anything running I would feel the heat and hear the fan yelling at me. Well CPU was running at 20-30%, but the only process I could find was "Host process for windows tasks". With nothing running the CPU was running at 2.3-2.6GHz. Seemed weird, so i did some more reading and a number of people suggested disabling hyper-v. So I did and WOW, i MEAN WOW. night and day difference. to the touch its still warm, but warm in a light blanket during fall sort of way. The fan is no more. It kicks on after an hour of writing code for my software class, but very very low, and it shuts itself off after a few minutes. "Host process for windows tasks" is no longer running taking up 30% processing, but maybe 1 or 2% when nothing else is up and running. CPU is hovering around 1GHz, give or take .5. What am I missing? What purpose does Hyper-V serve. Why doesn't it come disable from factory? Why isn't there a setting, other than disabling it through administrator command prompt. Don't get me wrong, I love my SP3, no regret getting it. Been disappointed with the sound and heat, but I've looked past it. But now with the way its running, wow. I wonder how many returns and negative comments MS had when it was this simple to fix????? or is this not a fix?