VAIO Running High And Hot

[nav13eh]

The Below VAIO Laptop is running very hot, and even the simplest things crank up the CPU usage. At idle, the CPU averages at about 8%. No, there are no virus'. No, there are no crapware at startup. Yes, Windows Aero is running, but flawlessly. So, should I crack it open, and blow out the dust bunny's.

Any ideas? And this isn't an emergency, so I am not freaking out for an answer.