neant: Everything is fine except for the video card. Intel HD Graphics could mean a number of things, but it's an on-board graphics and this game is pretty demanding compared to others. I'd say buy a real graphics card if you plan on playing games, but I suppose that's a laptop. Maybe post the model. I'd guess it can run, given your other specs, but that's not much more than a guess.
This are "The Witcher 2" minimum requirements:
Processor: Core 2Duo 2.2 GHz or dual core AMD 2.5 GHz
RAM: 1 GB Windows XP, 2 GB Windows Vista/7
Graphics: GeForce 8800 512 MB or Radeon (HD3850 512 MB)
HDD Space: 16 GB
They are published at the official support
page.
I think like Neant. You may fall short in the graphics area. It's a shame that we didn't get the model number of your graphic card. With a model number we can say for sure.
By your processor model I guess you have a laptop.
So, upgrade just the card is out of question, right ?