[FudgyDRS]

Check you fan speed to see if it's working properly and have someone clean out you filter. Another minor thing you can do is reduce the work of your proccessor by reduceing the display properties of your screen and change your windows theme to the basic classic version and obviously enough you should also close all unsed programs.

I know how much of a problem this can be as the same thing happened to me a few years ago, at worst you'll eventually have to replace the fan, or HDD and/or your battery will start to get damaged from your system overheating too much.