Asus G73Jw Windows not responding

Hi Guys, I have turned on my laptop for several days. And then my laptop just freeze. When I forced restart, everything is fine but then when I watch video (movies, youtube) in fullscreen and also play games for some time, my computer freezes again.

First I though that maybe my laptop is too hot so I bought air duster to remove the dust on the fan. And then I thought maybe there is a problem with the windows file (maybe corrupted or something) then I formatted my windows and also upgrade to windows 8.

When I try to play games and watch video the problem is still there. Im assuming that this is a video card problem since I have tried memTest and check all the temperature is fine. Or is it possible if the CPU is the problem?

When my laptop freezes, the third blue light (next to battery light) under the mouse pad is always on and the fan is working really hard. All of the OS is not responding, I cant close any program, go to any program, I cant even press CTRL+ALT+DEL. If I leave it be, the laptop will automatically restart and after that it says that my laptop have missing OS.

Please help me guys, I really need to use this laptop and I want to fix it myself since my warranty is already expired.

Asus G73Jw - Windows 8, 128Gb Crucial M4 SSD, 500Gb HDD, Intel Core i7 Q740 @ 1.73GHz, 16Gb RAM, Nvidia GeForce GTX 460M

 

IT could also be a hard drive issue, Crucial M4 128gb Randomly Freezing - Crucial Community, Have you updated the firmware for the SSD?

 

Thank you JOSEA.. I have updated the firmware a minute ago. I hope everything works fine..