Laptop Crash!

Hello readers! School has started recently, since this Monday. But as usual, we haven't learned a lot -- so I decided to spend my spare time playing The Sims 3.  It's been a long time!

I've just made a new family, consists of a man an a woman, living as housemates -- Lavinia King and Sherlock Holmes (yea I know I'm not that creative -_-'). I spent a lot of time designing their appearances, and finally, I started to fill their new home with furniture.

However.

Before I finished and saved the game, my laptop shuts down itself.

I was really annoyed -_- I tried to start my laptop and oh come on...it won't start properly. 
Now it is able to start, but with blank display. WTF IS GOING WRONG?

I don't know how to fix this problem -- is VAIO VPCCW25FG really incompatible for The Sims 3?
Here are the specifications:

• Intel^® Core^™ i3-330M Processor 2.13 GHz
• Genuine Windows® 7 Home Premium (64-bit)
• 14" wide (WXGA:1366 x 768) VAIO Display, LED backlight
• NVIDIA® GeForce® 310M GPU with CUDA™ Technology
• Bundled media player "Media Gallery" & creation software "PMB VAIO Edition"
• Entertainment usability: 16:9 aspect ratio screen & HDMI output connector

PLUS 3GB of RAM and more than 100 GB of free disk space?

Actually my little brother has exploit this laptop by playing DotA and League of Legends.... approx. 3 hours per day.

and Dragon Nest SEA.

and other craps.

I would really appreciated if you, readers, recommend me one or two programs which able to fix the computer. I've already had TuneUp Utilities 2011 installed and well, still not enough I think.

Maybe CCleaner?

Oh please. I want to play! :|