Well Pi ... no doubt it is pretty dusty inside the laptop, thought i would have thought that earlier this summer running a desktop fan facing the computer fans would have helped blow away the internal dust.

I have two pieces of software which say they measure the hard disk drive temperature. One says it examines the hard disk to see if it is healthy enough. I downloaded it a while ago and can't remember how it works. I have the free version of HDDlife. It measures the temp of the hard disk and measures its health and performance. It says its health is 54% and its performance 100%.

And opening the window does for certain lower the temperature. I know this because I have observed the temperature increase inbetween the times I have the window open. So the cool air does cool down the laptop and I've watched the numbers go down as I've sat here frozen, lol.

At the moment, on somebody's suggestion, I have the laptop propped up with a book and its temperature is now a steady 40C ...