I am thinking about selling my used laptop and getting a small netbook. But my laptop is about 4 to 5 years, and the OS is not in English. It's Samsung laptop, and if I format it, for how much would I be able to sell it? There is no defect; I just need quick cash. And I actually don't know how to format and reinstall OS (I don't have the reinstalling CD). How much would it cost to do this? Or is it something I can learn right now and do it? I'm using Window 7, by the way.