Prior to getting my SP3 i7, I had the SP3 i5 which I used for a month. I had practically no heating issues. As soon as I got the SP3 i7, I noticed some heating issues but wasn't sure what was causing it. After using for about a week or so, I know that anytime I'm writing to the hard drive, my SP3 really heats up. Today, as I was downloading the updates, I noticed the fan kicked in. By the time, updates were installed and the device rebooted itself and came back with the message "Updating... Please do not turn off your computer", my SP3 showed me the thermometer icon on the screen and shut itself off! I thought this would create some issues as the installation of updates were not yet completed. I waited a few seconds and manually turned on my SP3. It came back on, finished the installation and resumed normal operation. There was no heating after that and the fan never started again. I have to say though that my SP3 i7 really has a very low tolerance for heat -- or it really heats up fast. Anyone else having the same issues?