Graphics Card - Amnesia: The dark descent

Question

Ok so the deal is, I am planning on buying Amnesia, but I can't if the demo can't even run without a proper graphics card (It shows the title screen and ingame the crosshair but behind it is just plain black and no light whatsoever).
(Long Story Short on bottom)
There is many videos on youtube about this problem and it can be resolved by updating your Intel(R) HD Graphics Card.  So I tried going to intel to manually download an update. When I was done going through the video and finally getting ready to update it said "Windows could not verify if this update is compatible with your graphics card, updating now could lead to major problems or making your computer not work at all. Are you sure you want to update it?" and I said no to it and I looked on Intel for them to look at my computer's graphics card and find an update and it said this
Product detected: Intel(R) Processor Graphics 3000
Current Driver installed: 8.15.10.2523
A customized computer manufacturer driver is installed on your computer. The Intel Driver Update Utility is not able to update the driver. Installing a generic Intel driver instead of the customized computer manufacturer driver may cause technical issues. Contact your computer manufacturer for the latest driver for your computer.
So I clicked computer manufacturer and I ended up here, could someone tell me how and what i should do?
Please
Long Story short:
Please can someone tell me an update for my graphics card so I can run Amnesia: The Dark Descent without it ruining my computer (I want a sure answer where my computer will not break no matter what if you could please)

Answer 1

What's the full model number of your computer? It should be on a label on the bottom.
As an aside, it's a very interesting game. I started playing it recently, and I suspect I'm about half way through.
- Peter