Windows 7 CPU Usage SKY HIGH!

[vRory]

I need some help really badly, i've got a problem my CPU Usage is so high, like literally every 15 Mins it shuts it'self down. Here are some screenies of specs ect..

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Them screenies are showing it at low.
But is there a way cause i really wanna play Rollercoaster tycoon 2 :'(

 

[Adil]

Your CPU isn't the greatest CPU in the world, in fact, it's the most basic CPU on Intel's retail line. I also have a Celeron. Your memory doesn't help, with it running at 2GB. I suggest cutting down on the amount of applications open at one time, and try to plug your laptop into a charger, so you can max out performance.