Freezing problem out of nowhere!

I have this problem with the computer that when everything is alright the screen and the sound just freeze for like a minute ,leaving me unable to even move the mouse or keyboard, and then the computer goes back to normal. However after that it still mini-freezes from times to times and it needs a restart in order to stop this. Most likely it will happen again after that either in some minutes or hours. Now I checked online including these forums and saw that other people have this similar problem as well but I didn't find a solution or a response from any of them saying "that fixed it". 

So is there a solution for this? Anyone had this problem before and somehow fixed it? Do we even know if this happens on Alienware computers specifically?

Here's a video showing the problem on an Alienware 17 laptop. My computer is from x51 series with nvidia i7 processor and GTX-555 graphics card.

[View:https://www.youtube.com/watch?v=zxBWurayXoI:550:0]

Apparently updating graphics card drivers or doing this Alienrespawn doesn't fix this.  Any other ideas?