I was running windows 7, 64 bit on my laptop. It was factory installed (no cd). I realize that I should have chosen 32 bit, as I only have 2GB ram. I tried reinstalling windows from the computer application in windows 7, but it didn't offer me a choice of which system to install this time and instead just reinstalled 64 bit again. How can I reinstall factory settings to 32 bit instead? Thanks!